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 protractor
So, ∠1 = 80°
So, ∠2 = 120°
So, ∠3 = 90°
So, ∠4 = 180°