Question

show the sum of interior opposite angle of triangle is equal to its exterior angles. ​

Answer 1

The angle 'outside the triangle' (exterior angle A) equals D + C (the sum of the remote interior angles).

Hence above statement is true✅

Answer 2

Answer:

Theorem: An exterior angle of a triangle is equal to the sum of the opposite interior angles. In the figure above, drag the orange dots on any vertex to reshape the triangle. The exterior angle at B is always equal to the opposite interior angles at A and C.