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Angle is formed between two rays with a common end point.

Angles - Part 2

The common end point is called vertex of the angle

and the rays are called arms of the angle.

 

How do we name the angle?

Suppose the angle is

Angles - Part 3

We can call it

  ∠ B

     Or

  ∠ ABC   

Symbol of angle → ∠

 

 

Interior and Exterior of an angle

Let us take the angle

Angles - Part 4

 

Example

Angles - Part 5

X, Y is in interior of ∠ABC

Z is on  ∠ABC

P, Q is in exterior of  ∠ABC

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Davneet Singh

Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 13 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.