Question

If all the three angles of a triangle are equal, then each one of them is equal to

A. 90°

B. 45°

C. 60°

D. 30°

Answer 1

Let,

A, B and C be the angles of ΔABC

A = B = C (Given)

We know that,

∠A + ∠B + ∠C = 180°

∠A + ∠A + ∠A = 180°

3∠A = 180°

∠A = 60°

Therefore,

∠A = ∠B = ∠C = 60°

Thus, each angle is equal to 60°