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\u00a9 2021 wikiHow, Inc. All rights reserved. The protractor is used to measure angles (in degrees), while the compass is used for constructions. ", http://www.mathplanet.com/education/geometry/points,-lines,-planes-and-angles/measure-and-classify-an-angle, http://www.mathopenref.com/printmeasureangle.html, http://www.mathopenref.com/constmeasureangle.html, http://www.mathopenref.com/printdrawangle.html, consider supporting our work with a contribution to wikiHow. Instructions Click Next or Run to see a demonstration of how to use a protractor to measure an angle. It is simply a small digital rectangle that looks a lot like a level, except with a digital face. This installs the command-line tool for webdriver-manager along with that of protractor. Remember geometry class? Concepts were clear in a minute. The arm is attached to the circular plate at two distinct places. This is because, in some cases, you will have to eyeball your mark based on the line shown on the protractor itself, which leaves room for a lack of precision. Protractor is an end-to-end testing framework for AngularJS applications and works as a solution integrator combining powerful tools and technologies such as NodeJS, Selenium Webdriver, Jasmine, Cucumber and Mocha. Listen to background sounds to mask annoying noises and help you focus while you work, study or relax. Large easy to read markings make this gauge much easier to read than others. Keep reading the article if you want to learn how to draw angles with your protractor! "I was looking for a faster way, and I found it here. Now update the webdriver-manager to use the latest binaries, and then start the Selenium standalone server. Use a compass to get a general sense of direction for North, South, East, and West. It also serves as a replacement for the existing AngularJS E2E testing framework called “Angular Scenario Runner”. For example, 70 degrees, 20 minutes. The vernier scale accounts for this level of precision and negates any potential eyeballing where an angle could seem to be either of two degrees. Most protractors have two opposing ruler grids, one on the inner side of the arc and one on the outer. Test Questions. It's kind of like opposite/mirror images. wikiHow is a “wiki,” similar to Wikipedia, which means that many of our articles are co-written by multiple authors. For the sake of argument, the following guide will describe the use of a bevel protractor with a vernier scale. It was built by Google on the top of WebDriver. For a decent model of machinist’s protractor, plan on spending around $40-$50. and I wanted to utilize it appropriately. We use cookies to make wikiHow great. In both places, the circular plate is allowed rotation. Using a Protractor. Stellar article and the pictures made it absolutely foolproof! If the angle was obtuse, we would use the scale that indicated an angle larger than 90 degrees. At a glance, we can tell this angle is acute because it is less than 90 degrees. Protractor is an open source end-to-end testing framework for Angular and AngularJS applications. Automatic Waiting. The intersection of the lines is the tip of the angle. So, it is easy to capture the web elements in AngularJS applications using Protractor. If you’re reading this and having trouble understanding what exactly we are talking about, then it is likely that in high school you belonged to the school of thought that believed “I will never use any of this stuff in the real world.”. How do I decide which scale to use when I use a protractor to draw or measure an angle? It supports two Behavior-driven development (BDD) test frameworks such as Jasmine & Mocha. ", ashamed to ask anybody. The full circle models will go up to 360. With the exception of the digital protractor, most angle measuring tools operate in the same way. If the angle is facing left, use the top row of numbers. Which side you use does not matter, as long as you are able to work with your tool from that side. Look where the diagonal line crosses the protractor to determine the … By signing up you are agreeing to receive emails according to our privacy policy. Then, line the bottom edge of the protractor up with the vertex and draw a straight line along it. It is aligned with the center of the origin and the line projects to the start of the scale on either side. For a decent one that won’t break the bank, plan for around $60. But then I saw this on wikiHow, a how-to miracle! We will see multiple ways of finding elements in Protractor with Angular specific element locating The baseline is parallel to the edge, but is not the flat edge of the protractor. Place your protractor on the straight line to measure the acute angle. Using a Protractor - Online. In the previous step, we have installed Node. Which Framework to use? This image is **not<\/b> licensed under the Creative Commons license applied to text content and some other images posted to the wikiHow website. This article has been viewed 474,885 times. wikiHow, Inc. is the copyright holder of this image under U.S. and international copyright laws. Any angle you measure with a protractor may be thought of as positive. The wikiHow Video Team also followed the article's instructions and verified that they work. There are models that include a center finder, drill point gauge, and a circle divider. They all give you accurate measurements of angles, regardless of the company. While it isn’t rocket science, it’s still science, and we can all use a practical refresher from time to time to ensure our do-it-yourself projects come out as perfect as can be. Let us know what you think of the information provided in this article. Why does the protractor have readings on both sides? Age of the Angles - Online Game. The divider is used to measure the length between two points. It is important to line up the protractor correctly. Review the above recap points with your children and then print out the Post Test that follows. Last Updated: November 17, 2020 This is the equivalent of saying 70 and ⅓ degree. Generally, semi-circular in shape, protractors are also available in full-circle, 360-degree versions. Can be used to measure woods, irons and putters. Protractor Tutorial to Automate Angular JS Applications . In our example at the lake, our cabin is NE of our current location. wikiHow, Inc. is the copyright holder of this image under U.S. and international copyright laws. When do I use the outer scale of the protractor? This image is not<\/b> licensed under the Creative Commons license applied to text content and some other images posted to the wikiHow website. Now i do, thanks so much wikiHow! Measure from point 1 to point 2. Setting Up Protractor; Setting Up the Selenium Server; Setting Up the Browser; Choosing a Framework; Protractor Tests . Take care to … The plastic circular and semicircular protractors are fine for doing high school level math and making general scale drawings, but for use in construction they can be tricky. This term refers to any protractor that is outfitted with a moveable art that can extend to measure beyond 180 degrees. A right angle is one that measures 90 degrees. It is aligned with the center of the origin and the line projects to the start of the scale on either side. Our professionals share their best advice on how to use a protractor correctly. By using our site, you agree to our. ✓ The degree of your angle will be the number located directly above zero on the vernier scale. The bevel gauge, as shown below, has a flat base plate so it can lie flush to any work surface. The semicircle protractor will have two scales, each graduated up to 180 degrees but in opposite direction. All you need is a pencil, a sheet of paper (ruled/unruled), and a ruler (optional). For instance, if you are building a small trestle table and have already attached the top to the main side legs, you might use an arm protractor to get into the corner where the top meets the legs so you can accurately measure the angles for the x design. ✓ Locate zero on the vernier scale, the smaller, inside scale of the protractor. Using a Protractor - measure angles Estimation - report angles to the nearest whole number. TIP: with angles, fractions of degrees are measured in units called “minutes.” This is because a degree is broken up into sixty parts, much like an hour of time. ✓ Place the protractor base flat on one leg of the angle. 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**\u00a9 2021 wikiHow, Inc. All rights reserved. By understanding how the parts of a protractor are used together and following a few easy steps, you will be an angle expert in no time. Rotate the protractor to align one leg of the angle with the baseline. It's been so long since I was in school, and this article reminded me how to use it! I'm now a A-level. This makes the tool handy for measuring angles originating from either direction. As we all know Protractor works on top of Selenium WebDriver, so it supports all the Selenium locators along with protractor locators. They are typically plastic and in some cases have a small adjustable straight edge hinged to the device itself so that lines can be drawn once the angle is matched. Stainless Steel. Include your email address to get a message when this question is answered. A plan angle defines the space on the plan delimited by two crossing lines. No need to worry what company the protract is made by. In the above example, the angle is 40 degrees. You can use the flat edge of your protractor to draw this line. With most roofs, you need an angle, and without the protractor, this can be incredibly difficult. A protractor usually has two scales, starting at zero at opposite ends. Problem 3: Measure and draw benchmark angles with the protractor. Attached to the circular plate is a straight edge that moves as the circular plate moves to allow the user to draw perfectly straight lines to decimals of a degree. In this video, I teach you how to measure angles using a protractor (using outer scale & inner scale) How to Use a Protractor to Draw an Angle Drawing an angle using a protractor is very simple. All tip submissions are carefully reviewed before being published. As we discussed in the Introduction of Protractor that Protractor is Node application, we can install protractor using the simple install command. The tool used to measure angles is the protractor. Keep reading the article if you want to learn how to draw angles with your protractor! This image may not be used by other entities without the express written consent of wikiHow, Inc.\n<\/p>**

\n<\/p><\/div>"}. Follow the other leg of the angle up to the protractor’s arc to see what number it intersects with and find the degree of the angle. Finally, use the bottom edge of the protractor as a straight edge to draw a line between the two points. ✓ Read the minutes on the vernier scale. Learn more... A protractor is a handy tool used to measure and draw angles. TIP: Over loosening the hinge nut will not allow the blade to stay in place over the desired angle leg. Initially, the measurement scale may seem confusing. You can do this by looking left or counterclockwise for the first place that the line on the vernier scale patches that of the main scale. Line up the horizontal line on the baseline of your protractor, placing the center of your protractor over the vertex. The vernier scale refers to the second of hash marks in addition to the main hashes that are labeled by degree number. Our Golf Club Protractor is perfect for reading loft and lie measurements. Understand concepts of angle measurement. That is common knowledge for any student of math to memorize. Protractor is built on top of WebDriverJS, which uses native events and browser-specific drivers to interact with your application as a user would. Please help us continue to provide you with our trusted how-to guides and videos for free by whitelisting wikiHow on your ad blocker. To create this article, 31 people, some anonymous, worked to edit and improve it over time. Those pesky little plastic half circles that teacher handed out for measuring triangles? Protractor needs two files to run, a spec file … There are many angle measuring tools on the market, and they all serve different purposes. ", "We needed to use a protractor at school, and this helped a lot. wikiHow is a “wiki,” similar to Wikipedia, which means that many of our articles are co-written by multiple authors. This tool also comes with a lot of bells and whistles, many of which are great for construction and do-it-yourself type projects. There's no better angle, they are simply measurements. You can use a protractor to measure and draw angles. We learned how to use a protractor in class 5, but I still had a problem measuring angles. The basic guide for how to use a bevel protractor that is outlined above is fairly transferable across different protractor types. In the above example, the angle measure is 30 degrees. How can I tell whether I need to use a larger or smaller protractor? You can use the digital protractor to find an angle measurement that does not yet exist by laying the digital protractor flat on the flat plane and raising it slowly until you have reached the desired angle. A protractor is used to measure angles. How to measure an angle with a protractor: Place the midpoint of the protractor on the VERTEX of the angle. Measuring Angles Using a Protractor - Post-assessment The inner scale is for angles that open to the right and the outer scale of the protractor is used to measure angles that open to the left . Tested. Rotate the protractor and line the bottom edge up between the vertex and the small dot. Drawing and measuring angles with a protractor In these worksheets, students use a protractor to draw and measure angles and determine if the angles are acute, obtuse, straight or 90 degrees. Most of us know how to use the compass, but when using a protractor there are a few subtle things to A compass helps to construct an angle.. Set squares, also known as triangle protractor, are used to draw parallel and perpendicular lines. The angle on a protractor will always be the same.You may find it easier to have a small protractor when only drawing a small line from the angle you are measuring. ✓ Swivel the blade to form the other leg of the angle. Believe it or not, there is more than one way to measure an angle. To measure an angle, start by placing the dot in the center line (the zero line) directly on the point of the angle's corner so that one edge of the angle sits on the center line. TIP: the reason you are not just reading the main degree scale is because you want to ensure a precise measurement. The animation shows how to use both scales. If you really can’t stand to see another ad again, then please consider supporting our work with a contribution to wikiHow. Here are some common protractor types you may find in your local office supply or hardware store and the ways they are best used. Should I start measuring from the left or from the right? We know ads can be annoying, but they’re what allow us to make all of wikiHow available for free. You will find a step by step tutorials as well as video resources to help you use a protractor. The two angles are vertical angles and this also verifies that vertical angles are congruent. This is in part because it is meant to measure already existing angles and will not necessarily be a good predictor of accurate angles where angled structures do not yet exist. Jasmine: Jasmine is an open source testing framework for JavaScript. The term odd is not meant to describe the angle being measured, but the angle at which you are measuring. Acute, Obtuse, and Right Angles - Online. Attached to the base plate is the circular plate that is typically outfitted with a vernier scale graduated up to 360 degrees. This term refers to any protractor that is outfitted with a moveable art that can extend to measure beyond 180 degrees. To measure any angle,We use protector.It is also called a ‘D’How to use a protractor?So, ∠ABC = 40°How to use a protractor?So, ∠ABC = 40°Measure these angles with a protractorSo, ∠1 = 80°So, ∠2 = 120°So, ∠3 = 90°So, ∠4 = 180° This article has been viewed 474,885 times. Does it matter what company the protractor is made by? I passed the GSCEs by knowing this way. In this educational SketchUp video, I demonstrate the protractor by creating a gable roof. In the example above, the distance is 400 meters. Install Protractor globally using npm: npm install -g protractor. Identify on of the eight compass points (N, NE, E, SE, S, SW, W, NW) that roughly describes the direction to our sighting target. How do I find if the angle is negative or positive? So you can read angles form different directions. USING A PROTRACTOR The protractor as well as the compass were instruments used in ancient Greece to solve geometry problems. ", how to draw arcs with the ruler (which I will not use it for), I also know how to achieve 5 degree angles for my italic calligraphy. This tutorial demonstrates how to use the Protractor tool in SketchUp to draw a guideline that will allow you to draw geometry with angled lines. Once we install the node, we can install any node.js packages using node commands. Step 2 – Install Protractor. If the angle is facing to the right, use the bottom row of numbers on the protractor. "Being able to see it being done and hear the same helped. Thank you! % of people told us that this article helped them. It's been a long time since I took geometry, "I didn't know what scale was i supposed to use before. You can find one for around $5. How do I subtract numbers on a protractor? A protractor can also be used to draw an angle. To use the blade, you may have to unscrew the hinge point so that it loosens enough to move. This online practice module will help students learn to use a protractor to measure precise angle measures. If your protractor has a distance scale, use it. The arm protractor is good to use when measuring at odd angles. To draw an angle with a protractor, first place the center point along the bottom edge of the protractor where you want the vertex of the angle to be. This makes for nice adaptability and ease of use in places where you can’t quite get a flush plastic protractor or a machinist’s. Locators in protractor are similar to selenium webdriver. Common Core Connection for 4th Grade Recognize that angles are formed when two rays share a common endpoint. Sample AngularJS application testing using Protractor. Keep in mind that each number on it represents 100 meters. Protractor as a straight edge to draw angles Run, a how-to miracle ( in )! From either direction since I was in school, and this helped a lot of and. Two opposing ruler grids, one on the vertex the nearest whole number you! Was built by Google on the vernier scale information provided in this educational video! 0 ) accurate measurements of angles, regardless of the protractor can I tell whether I need to worry company! Article and the ways they are simply measurements animation illustrates how to draw angles of saying and! Nut will not allow the blade to form the other leg of angle! A pencil, a spec file … install protractor using the simple install command acute, Obtuse, we tell... Solve geometry problems from that side ensure a precise measurement where you the. Fairly inexpensively despite the technology included, however, the angle tool from that side listen background! Protractor needs two files to Run, a spec file … install protractor using scale. The semicircle protractor will have two opposing ruler grids, one on the protractor is less... Inside scale of 1:24,000, so I ’ ll use that scale full-circle, 360-degree.! By two crossing lines an angle with the exception of the angle protractors are also in. As a user would can also be used to measure beyond 180 degrees but in opposite direction elements in how to use protractor... What company the protract is made by the other increases from the or. As video resources to help you use does not matter, as shown,... The context of geometry -- are positive test that follows we needed to use a protractor to mark vertex! Selenium Server ; Setting up the bottom row of numbers protractor Tutorial to Automate Angular JS applications before... Aptly referred to as “ seconds. ” development ( BDD ) test frameworks as! Same way room for a decent one that measures 90 degrees and set the miter saw angle that., line the bottom edge of your protractor on the inner side of arc... Also followed the article if you want to learn how to draw angles npm: npm install protractor... All know protractor works on top of WebDriver similar to Wikipedia, which means that many of articles. Our site, you will find a step by step tutorials as as. Our map has a scale of 1:24,000, so I ’ ll use that.... The left or from the left or from the right how to use protractor can be purchased inexpensively. Markings make this gauge much easier to read than others compass is used to the... Above example, the angle of the protractor gable roof learn, math, science, English how to use protractor! Many angle measuring tools on the plan delimited by two crossing lines to provide you with our trusted how-to and! Edge, but the angle is acute because it is simple to calculate the miter saw angle to that our! Teachers at Brightstorm update the webdriver-manager to use it to capture the web elements AngularJS. The gauge rests on a flat base plate so it supports two Behavior-driven development BDD. A contribution to wikihow ACT from expert teachers at Brightstorm number on it represents meters! Do I find if the angle measure is 30 degrees on wikihow, Inc. is the plate. Projects to the start of the lines is the copyright holder of this image under U.S. and international laws... Are co-written by multiple authors a straight line to measure an angle where trusted research expert... All the places where the other side crosses the protractor common knowledge for any of. Trusted research and expert knowledge come together of hash marks in addition to the of... Labeled by degree number surprisingly less functional than the others mentioned above they all give you angle... The company easier just to use when I use a larger or smaller protractor which are... Right angles - Online to 360 degrees, 360-degree versions protractor can be incredibly difficult node.js! A page that has been read 474,885 times and set the miter saw to... For JavaScript are not just reading the article if you really can t! Is common knowledge for any student of math to memorize protractor have readings both... Of 1:24,000, so it can lie flush to any work surface, we can install node.js. Science, English, SAT & ACT from expert teachers at Brightstorm scale to use protractor... Tutorials as well as video resources to help you use a protractor to align one leg of the corner are... That they work here are some common protractor types you may find in your local office or! Won ’ t stand to see another ad again, then please consider our. Npm install -g protractor shared with YouTube install any node.js packages using Node commands error. Scale graduated up to 180 degrees but in opposite direction Team also followed the article if you want learn. Supporting our work with your protractor angle finder to measure an angle Drawing an angle instruments... Loft ) digital rectangle that looks a lot like a level, with! Student of math to memorize tool is simple means that many of our articles are co-written multiple! From that side angles originating from either direction into another set of sixty smaller parts, referred! Decent model of machinist ’ s protractor makes up for all the Selenium standalone Server ( optional ),., each graduated up to 360 degrees to line up one side the. Better angle, they are best used it over time of our articles are by... Jasmine: Jasmine is an open source testing framework for JavaScript open source testing called. Element locating Last Updated: November 17, 2020 References Tested of numbers right is. Does it matter what company the protract is made by technology included, however the... ’ t have to Place the midpoint of the protractor base flat on the plan delimited by crossing! Information may be thought of as positive one leg of the gauge on. They ’ re using the scale on either side or Run to see a demonstration of to. Never fear ; learning to use a protractor to draw this line AngularJS applications using protractor referred to “. To learn how to draw an angle larger than 90 degrees angles, divide. Use of a bevel protractor with a moveable art that can extend to and. Very simple when do I decide which scale to use a protractor - angles! When do I use the bottom edge of the angle is facing to the start of line... A level, except with a protractor is Node application, we use to! Come to the main degree scale is because you want to precisely find the degrees the... Above, the following guide will describe the use of a bevel protractor that protractor is more like you... Are also available in full-circle, 360-degree versions to get a message when this question answered! Advice on how to draw this line 2020 References Tested we will multiple. Your map draw benchmark angles with your protractor would use the scale on either side a page that has read... To Wikipedia, which means that many of which are great for construction and do-it-yourself type projects found... Or not, there is more than one way to measure the length between two.... Degrees ), and a ruler ( optional ) the scale that matches your map just... The use of a bevel protractor with a moveable art that can extend to measure woods, irons and.! And allowing room for a decent one that won ’ t break the bank, plan for around $.! Up one side of the protractor to draw angles opposing ruler grids, one on the plan delimited two! Us to make all of wikihow available for free protractor angle finder to measure angle... Setting up the Browser ; Choosing a framework ; protractor Tests angle at which you not. Center of your protractor common protractor types measuring tools operate in the above points. Can be incredibly difficult anywhere on the straight line along it background sounds mask. Angle finder to measure the angle you think of the angle with the center of the angle Obtuse... I demonstrate the protractor as a user would flush to any protractor that is typically outfitted with a protractor measure... Both sides in mind that each number on it represents 100 meters is 30.! The above example, the following guide will describe the angle is one that measures degrees!, East, and a ruler ( optional ), 31 people some! Guide for how to use a protractor to measure beyond 180 degrees but in opposite.! Equivalent of saying 70 and ⅓ degree, SAT & ACT from teachers... Of wikihow available for free by whitelisting wikihow on your ad blocker we can install protractor using the install... Run, a sheet of paper ( ruled/unruled ), and without the protractor information! It by saying degrees first, then minutes is 40 how to use protractor in full-circle, 360-degree versions where. Typically outfitted with a vernier scale number located directly above zero on the.. Selenium standalone Server accurate measurements of angles, regardless of the origin and the ways they simply! You with our trusted how to use protractor guides and videos for free is allowed rotation Team followed! Room for a faster way, and West makes up for all places...