1.jpg

To measure any angle,

We use protector.

It is also called a ‘D’

 

How to use a protector?

2.jpg

3.jpg

So, ∠ABC = 40°

How to use a protector?

4.jpg

5.jpg

 

So, ∠ABC = 40°

 

Measure these angles with a protector

6.jpg

7.jpg

So, ∠1 = 80°

 

 

8.jpg

9.jpg

So, ∠2 = 120°

 

10.jpg

11.jpg

So, ∠3 = 90°

 

12.jpg

 

13.jpg

So, ∠4 = 180°

 

  1. Chapter 5 Class 6 Understanding Elementary Shapes
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Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 8 years. He provides courses for Maths and Science at Teachoo. You can check his NCERT Solutions from Class 6 to 12.