Question

in a triangle if angle A = 2 angle b = 6 angle C, find the measure of Angle A Angle B and angle C.

Answer 1

let angle a= 2x
let angle b=6x
angle c=x
2x+6x+x=180
8x+x=180
9x=180
x=180/9
therefore angle C=20°
angle b =6*20
B=120°
angle a=2*20
A =40°