Question

An exterior angle of a triangle is 100 degree and its intrior opposite angles are equal to each other .find the measure of each angle of triangle

Answer 1

The Answer should be 50....

Answer 2

let the two interior opposite angle be X. the third interior angle is 180-100=80°. therefore, we know that the sum of all angle of triangle is 180° , therefore, X+X+80°=180°. solving this, we get X=50° .therefore, the two interior angles are 50° and 50°