Words To Know

Angle  An angle is a figure formed by two lines that intersect at a point.

Right Angle  An angle that has an angle measure of 90º.

Angle Congruence  Angle congruence means that two angles have the same angle measure in degrees.

Supplementary Angles  Two angles are supplementary if their sum adds up to 180º.

Complementary Angles  Two angles are complementary if their sum adds up to 90º.

Adjacent Angles  Adjacent angles are angles that share a leg.

Linear Pair of Angles  A linear pair of angles is a set of angles that are adjacent and supplementary.

Vertical Angles  Vertical angles are formed from two intersecting lines and are opposite one another. They are congruent.
Solving for Angle Measures With a Variable