Basic Geometry Terms

Front

Lines in the same plane that do not intersect.

Back

Parallel Lines

Tags

CCSS.HSG.CO.A.1

Front

An undefined term in Geometry. A specific location. It has no dimension and is represented by a dot.

Back

Point

Tags

CCSS.HSG.CO.A.1

Front

Points or lines all in one plane.

Back

Coplanar

Tags

CCSS.4.G.A.1

CCSS.HSG.CO.A.1

Front

Three or more points not all of which lie on the same line.

Back

Non-Collinear

Tags

CCSS.HSG.CO.A.1

Front

A portion of a line that starts at a point (the endpoint) and continues forever in one direction.

Back

Ray

Tags

CCSS.4.G.A.1

Front

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

Back

Line

Tags

CCSS.4.G.A.1

Front

A line that divides an angle into two equal parts.

Back

Angle Bisector

Tags

CCSS.HSG.CO.C.9

Front

A set of points that are all on the same line.

Back

Collinear

Tags

CCSS.HSG.CO.A.1

Front

Two lines that intersect at a right angle (90 degrees).

Back

Perpendicular Lines

Tags

CCSS.HSG.CO.A.1

Front

A flat surface that extends infinitely in all directions.

Back

Plane

Tags

CCSS.HSG.CO.A.1