Question

In a triangle , one angle is 60 degree and the measure of one of the other two triangles are half of the other . Find the measure of the smallest angle of the triangle.

Answer 1

let one angle is x
second angle is 1/2x

so 60+1/2x+x = 180
1/2x + x =120
x+2x/2=120
3x =120(2)
3x=240
x=80
1/2x=80/2
so second angle is 40

Answer 2

Answer:

answer is 40 degree !