Basic Geometry Vocabulary

Front

Consists of 2 endpoints and all the points in between.

Back

Line Segment

Front

A flat surface made up of points that has two dimensions and extends without end.

Back

Plane

Front

Two lines that intersect to form a right angle.

Back

Perpendicular Lines

Front

A line has one dimension. It is represented by a line with two arrowheads, but it extends without end.

Back

Line

Front

Which one is a way to name this line? (Options: ̅A̅ ̅B̅, ̅B̅ ̅A̅, Line A, Line l)

Back

Line l

Front

A point that has no dimensions and represents a location in space.

Back

Point

Front

A straight path that extends infinitely in both directions and has no endpoints.

Back

Line

Front

Two lines that never intersect and are always the same distance apart.

Back

Parallel Lines

Front

A geometric figure formed by two rays that share a common endpoint.

Back

Angle

Front

A part of a line that has one endpoint and extends infinitely in one direction.

Back

Ray