Question

In ABC, angleA = angleB /2= angleC/ 6 . Then the measure of angleA is

Answer 1

$\large\boxed{Answer}$

angle A = angle B /2 = angle C /6

angle B = 2angle A

angle C = 6angle A

We know that

Sum of all three angles of a triangle = 180°

angle A + angle B + angle C = 180°

angle A + 2angle A + 6angle A = 180°

9angle A = 180°

angle A = 180°/9 = 20°