![]() Step 5: Now using a scale, join A and C.Step 4: In the inner readings, look for 40º and mark it as point C.Step 3: Since the angle is drawn on the right-hand side of the vertex we will see the inner readings.Step 2: Align the baseline of the protractor on AB such that the center of the protractor is placed on point A.Let us see how to draw an angle of 40º using a protractor. ![]() In order to draw angles using a protractor, we use the following steps. This can be verified by the values, that is, 150º + 30º = 180º. It should be noted that ∠AOC + ∠BOC form a straight line and hence add up to 180. Step 2: Check the reading where the ray OC is formed.Since we need to measure ∠AOC, which is formed on the left-hand side of the center, we will use the outer readings which go clockwise. Step 1: Place the baseline of the protractor on line AO such that the centre of the protractor is placed on vertex O.Now, let us find the measure of ∠AOC using the following steps. Step 3: Now, identify the reading on the protractor where ray C is extending.Step 2: Since the angle is formed on the right-hand side of the center, we will use the inner readings which go anti-clockwise.Step 1: In order to measure the angle ∠BOC, align the baseline of the protractor with the line AB such that the center circle of the protractor is at the vertex O.In this case, ∠BOC = 120°.įor measuring angles with a protractor, let us use the following steps and relate to the figure given below. Step 4: If the angle to be measured is formed on the right-hand side from the center of the protractor, we need to use the inner readings of the protractor.If the angle to be measured is formed on the left-hand side from the center of the protractor, we need to use the outer reading of the protractor. Step 3: Decide which readings are to be followed.Step 2: Place the baseline of the protractor on the ray which is the base of the angle.Step 1: We first need to pIace the center (hole) of the protractor on the vertex O.Observe the following figure to know how to read a protractor and relate to the steps given below. Each inner reading and outer reading supplements each other, i.e., they add up to 180°. How to Read a Protractor?Ī protractor can be read using its inner readings or its outer readings depending on the angle that is formed. It has two readings - the outer reading and the inner reading that help to measure a given angle. It is forbidden to embed into an i-frame of another website.A protractor is an instrument which is very easy to use. Your puzzle will be checked and if it is suitable for other users it will be published on the website.Ĩ. You give the edu games website the permission to use your created puzzles. There are no limitations on the numbers of worksheets you can create and download.ħ. As long as the school or institution is free for the students and that they have free access to the worksheets.Ħ. You are allowed to use the worksheets (as pdf) in a closed environment for teaching purposes, as such Google's Classroom. It is forbidden to place the worksheet as a pdf file on a website.ĥ. You can place an image of the worksheet on a website, but you have to place clearly and close to the image a link to 4. It is strictly forbidden to modify the worksheets in any way.ģ. You can use the worksheets for free for non-commercial purposes, such as in schools, training centers or at home.Ģ.
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