Exterior Angle of a Triangle Example Problem

Steph Curry explains how to find an unknown angle in a triangle using the properties of interior and exterior angles. He demonstrates a step-by-step solution to a problem and introduces a shortcut for calculating exterior angles, emphasizing that the exterior angle equals the sum of the two non-adjacent interior angles.

What is the value of x if one angle is 63 degrees and the other is 117 degrees?

Describe the shortcut for finding the value of an exterior angle in a triangle.