Question

in triangle ABC angle B is 5 times of angle A , angle C is the 3 times of angle A then find all angl?
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Answer 1

Let angle A be x

So angle b = 5x(5times of angle A)

angle C = 3x(3 times of angle A)

so

ANGLE A + ANGLE B + ANGLE C = 180°

(Angle sum property of a triangle)

x + 5x + 3x = 180°

9x = 180°

x = 20°

Angle A = 20°

Angle B = 100°

Angle C = 60°