Geometry Vocabulary

Front

Lines that are the same distance apart and never intersect.

Back

Parallel Lines

Tags

CCSS.HSG.CO.A.1

Front

An angle that equals 180 degrees.

Back

Straight angle

Tags

CCSS.4.G.A.1

Front

A straight path of points that goes on and on in both directions with NO endpoints.

Back

Line

Tags

CCSS.4.G.A.1

Front

A part of a line that includes two points called endpoints and all the points in between.

Back

Line segment

Tags

CCSS.HSG.CO.A.1

Front

Lines that pass through the same points.

Back

Intersecting Lines

Tags

CCSS.4.G.A.1

CCSS.HSG.CO.A.1

Front

An angle that is less than 90 degrees.

Back

Acute angle

Tags

CCSS.4.G.A.1

Front

An angle that is exactly 90 degrees.

Back

Right angle

Tags

CCSS.4.G.A.1

Front

An angle that is greater than 90 degrees but less than 180 degrees.

Back

Obtuse angle

Tags

CCSS.4.G.A.1

Front

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

Back

Ray

Tags

CCSS.4.G.A.1

Front

A point that has no size, only a location.

Back

Point

Tags

CCSS.4.G.A.1