angles that relate

Ryan and Shane

supplementary angles

Supplementary Angles Two Angles are Supplementary if they add up to 180 degrees . These two Angles (140 degrees and 40 degrees) are Supplementary Angles, because they add up to 180 degrees.


Two angles are Adjacent if they have a common side and a common vertex (corner point) and don't overlap.

interior angles

An Interior Angle is an angle inside a shape.