Exterior angle of triangle

Last updated at Dec. 16, 2024 by

For ∆ABC

25.jpg

∠1, ∠2, ∠3 are exterior angles

 

We can also  write as

Exterior angle of triangle - Part 2

∠1, ∠2, ∠3 are exterior angles

But, how to differentiate?

We go in same direction always

 

For example

In Δ ABC

Exterior angle of triangle - Part 3

 

We can make a line on part A as

Exterior angle of triangle - Part 4

Three is a property of exterior angles

 

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Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 14 years. He provides courses for Maths, Science and Computer Science at Teachoo