Geometry Vocabulary

Front

Collinear

Back

Points that lie on the same line.

Front

Contrapositive

Back

Front

Angle

Back

2 rays that share a common endpoint, but sides are not on the same line.

Front

Point

Back

Represents a location, is named by a Capital Letter.

Front

Converse

Back

The converse of a statement 'If p, then q' is 'If q, then p'.

Front

Line

Back

A straight one-dimensional figure having no thickness and extending infinitely in both directions.

Front

Ray

Back

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

Front

Plane

Back

A flat two-dimensional surface that extends infinitely in all directions.

Front

Intersection

Back

The point or set of points where two or more geometric figures meet.

Front

Complementary Angles

Back

Two angles whose measures add up to 90 degrees.