Question

In the triangle, the exterior angle is twice of each of the interior opposite angles. the exterior angle is 120°. Find the measure of each interior opposite angle of the triangle​

Answer 1

Answer:

let interior angle=x

then other interior angle=x+60

given that 2x=x+60°

so x=60°

so third interior angle=180°-x-60°=60°

so all interior angles will be equal to 60°

and triangle will be equilateral.l