Basic Geometry Vocabulary

Front

A location in space that is represented by a dot and has no dimensions

Back

Point

Front

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

Back

Line

Front

Consists of 2 endpoints and all the points in between.

Back

Line Segment

Front

Coplanar lines that do not intersect.

Back

Parallel Lines

Front

A flat surface made up of points that has two dimensions and extends without end and is represented by a shape that looks like a floor or wall.

Back

Plane

Front

What are these figures called? Options: Points, Lines, Angles, Planes

Back

Angles

Front

Two lines that intersect to form right angle.

Back

Perpendicular Lines

Front

What is this a picture of?

Back

Congruent Segments

Front

Which one is NOT a way to name this angle? Options: ∠ABC, ∠CAB, ∠1, ∠A

Back

∠ABC

Front

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

Back

Line l