Question

Exterior angle of a triangle is 110 degree and one of its interior opposite angle is 30 degree find the measure of other two angles of the triangle

Answer 1

In angleABC

Let the angle be A,B,C

ATQ,110=30+A

A=110-30

A=80 degree

angleA+ angle B+ angleC =180 (angle sum property)

80+30+C =180

C=180-110

C=70 degree