Module 2 Vocabulary - Geometry

Front

ray

Back

Part of a line that starts at a point and extends to infinity.

Front

opposite rays

Back

Two collinear rays with a common endpoint.

Front

straight angle

Back

Made up of opposite rays which has a measure of 180 degrees.

Front

angle

Back

A pair of rays that have a common endpoint.

Front

sides

Back

The rays that make up the angle.

Front

vertex

Back

The common endpoint of an angle.

Front

interior

Back

inside of an angle

Front

exterior

Back

outside of an angle

Front

congruent angles

Back

Angles that have the same measure.

Front

angle bisector

Back

A ray or segment that divides an angle into two congruent parts.