Question

exterior angle at c o a the exterior angle at C of a triangle ABC is equal to 120 degree . find the measures of all the angle of a triangle if angle A =angle B ehat type of triangle is this​

Answer 1

Explanation:

angle C = 180° - 120° (linear pair)

= 60°

given ,angleA =angle B

let A and B be x

by angle sum property,

x+ x+60 = 180

2x =180- 60

2x = 120

x= 60°

as all angles are 60° it is a equilateral traingle

hope this will help you