Question

Mark the correct alternative in each of the following:
If all the three angles of a triangle are equal, then each one of them is equal to

विकल्प

•  90°

•  45°

•  60°

•  30°

Answer 1

In a given ΔABC we are given that the three angles are equal. So, ∠A = ∠B = ∠C

According to the angle sum property of a triangle, in ΔABC

∠A + ∠B + ∠C = 180°

                 3∠A = 180°

                  ∠A = 60°

∠A = ∠B = ∠C = 60°

Therefore, all the three angles of the triangle are equal to 60°