Question

In a ∆ABC, LA +LB= 110°, LC+LA=135°. Find LA.​

Answer 1

Answer:

<A =65°

Step-by-step explanation:

In triangle ABC

<A + <B + <C = 180° ( angle sum property of a triangle)

=> (<A +<B) +(<A+ <C) -<A = 180°

=> 110° + 135° - <A = 180° ( GIVEN)

=> 245° - <A = 180°

=> <A= 245° -180°

So, <A = 65°