Question

In a triangle sum of two interior opposite angles is always equal to

Answer 1

adjacent exterior angle

Answer 2

Answer:

The sum of three angles of a triangle is always equal to 180 degrees.

Assume α, β & γ be the three angles inside the adjacent sides of the triangle;

α + β + γ = 180°

As per given condition, sum of two interior opposite angles (say, β & γ) is always equal to 180°- α

β + γ = 180°- α