How To Use Protractor To Measure Angles

How To Use Protractor To Measure Angles. You can use a protractor to measure and draw angles. Learn how to correctly line up and read a protractor to measure different types of angles.

Measuring angles with a protractor lesson & video from www.homeschoolmath.net

First place the midpoint of the protractor on the vertex of the angle. Read the degrees where the other side crosses the number line. Find the baseline of the protractor and line it up with the baseline of the shape or angle.

Flip The Paper, Keep The Protractor On The Vertex, And Measure From The Dotted Line To The Angle Line.

00:01:46.220 so, let’s measure this angle using a protractor. How to measure an angle with a protractor? (a) place the vertex o at the center of protractor.

We Measure An Angle In Degrees By Using A Protractor.

00:01:38.150 therefore, we can find x, by taking 360 degrees, minus this angle. The vertex is the point where the two arms meet. Line up one side of the angle with the zero line of the protractor (where you see the number 0).

Observe How The Vertex Is Placed Just At The Center Of Protractor.

A quarter circle or a right angle is 90°(90 degrees) how to measure an angle with a protractor. Learn how to correctly line up and read a protractor to measure different types of angles. Notice when the value is hidden the angle value next to the to give chrome permission to use your microphone and/or camera, please follow the below instructions:

For Example, If You Have An Inside Angle Of 90 Degrees Then You Divide This Number By Two And You Get 45 Degrees.

When you know how to use a protractor, you can measure both small and large angles. Therefore, the angle abc is 220 degrees. The protractor can measure from 0 to 180°, if an angle is greater than 180° you turn the protractor upside down and measure the angle from the baseline, then add 180°.

Now, Add The Acquired Angle To 180°.

Try to measure the angles a, b and c inside the triangle. Place the midpoint of the protractor on the vertex of the angle. Place the protractor on the vertex of the base line, and draw a dotted line for 180°.