Question

In a triangle, one angle is 70 degree in and other two angle are such that one is lesser in measure by 20 degree than the other. What are the measure of these two angle?

Answer 1

let the angle be x
second angle is x-20

so x+70+x-20=180
2x=180-50
x=130/2
x=65
x-20= 65-20
=45