Question

I an isosceles tringle the base angles are equal and the vertex angle is twice of each base angle .Find the measures of the angles of the triangle.

Answer 1

let each base angle be x
then the vertex angle will be 2x

x+x+2x=180° ( Angle sum property )
=> 4x=180°
=> x = 45°

=> measure of each Angle of ∆ is
45°,45° and 90°