Question

In a isosceles triangle one base angle is twice of vertex angle. Find the three angle of the triangle.​

Answer 1

Answer:

36°, 72° and 72°

Step-by-step explanation:

Let vertex angle = x

The base angle = 2x

Since the Δ is isosceles the other base angle = 2x

∴The sum of all the angles = 180°

x+ 2x+ 2x = 180°

5x = 180°

x=36°

∴The angles are 36°,72° and 72°