12.11/12.12 Warm-Up

Front

Points that lie on the same line.

Back

Collinear

Front

A straight path that goes in both directions.

Back

Line

Front

A flat surface.

Back

Plane

Front

A part of a line that has two endpoints.

Back

Line Segment

Front

A part of a line that starts at a point and goes infinitely in one direction.

Back

Ray

Front

Two angles that add up to 90 degrees.

Back

Complementary Angles

Front

Two angles that add up to 180 degrees.

Back

Supplementary Angles

Front

A point that has no dimensions, only a location.

Back

Point

Front

A figure formed by two rays with a common endpoint.

Back

Angle

Front

A set of points that extends infinitely in two directions.

Back

Line