Measuring Angles with a Protractor

Table 9

Protractors usually have two sets of numbers going in opposite directions.

Be careful which one you use!

Let students practice measing angles using technology before trying it in their note books. Use the link below.

https://www.mathsisfun.com/geometry/protractor-using.html

-Place the midpoint of the protractor on the VERTEX of the angle.

-Line up one side of the angle with the zero line of the protractor (where you see the number 0). 

-Read the degrees where the other side crosses the number scale.

NIM page 72 No 1 a-e

Measure the angles accurately.

What are the steps to follow when measuring angles using a protractor?