Question

What is Exterior angles theorem?

Answer 1

Exterior Angle Theorem

Explanation:

An exterior angle of a triangle is formed by any side of a triangle and the extension of its adjacent side. The Exterior Angle Theorem states that An exterior angle of a triangle is equal to the sum of the two opposite interior angles.

Answer 2

Answer

Explanation
The formula for calculating the size of an exterior angle is
exterior angle of a polygon = 360 divided by number of sides