Check sibling questions

Proof of Alternate Exterior Angle Equal

Last updated at May 29, 2023 by

Let’s prove alternate exterior angles ∠1 & ∠8 equal

59.jpg

For parallel lines l and m,

with transversal p,

  ∠1 = ∠5       (Corresponding angles)  …(1)

 

Also,

  ∠5 = ∠8               (Vertically opposite angles)  …(2)

 

From (1) & (2)

  ∠1 = ∠5

Proof of Alternate Exterior Angle Equal - Part 2

 

Hence,

Alternate Exterior Angles are equal. 

 

 

Learn in your speed, with individual attention - Teachoo Maths 1-on-1 Class

Book a free demo
Ask a doubt
Davneet Singh's photo - Co-founder, Teachoo

Made by

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.