GEOMETRY VOCAB

Front

Exact location with no size.

Back

Point

Front

A straight path with no thickness, extending forever.

Back

Line

Front

A flat surface with no thickness that extends forever.

Back

Plane

Front

A part of a line that starts at one endpoint and extends forever in one direction.

Back

Ray

Front

Part of line symmetry where one half mirrors the other.

Back

Line Segment

Front

Symbol for congruent:

Back

Congruent

Front

A figure formed by two rays with a common endpoint (vertex).

Back

Angle

Front

Point where two sides of an angle or polygon intersect.

Back

Vertex

Front

Angle measuring 90°

Back

Right Angle

Front

Angle > 0 and < 90

Back

Acute Angle