Geometry Vocabulary

Front

In angle ABC, B is the...

Back

vertex

Front

Name that figure! (An angle less than 90 degrees)

Back

acute angle

Tags

CCSS.4.G.A.1

Front

What is the relationship of the angle pair? (Two angles that add up to 180 degrees)

Back

Supplementary

Tags

CCSS.7.G.B.5

Front

What is the relationship of the angle pair? (Two angles that are opposite each other when two lines intersect)

Back

Vertical

Tags

CCSS.7.G.B.5

Front

Name that figure! (A part of a line that has two endpoints)

Back

Line segment

Tags

CCSS.4.G.A.1

Front

What is the definition of a ray?

Back

A part of a line that starts at a point and extends infinitely in one direction.

Tags

CCSS.4.G.A.1

Front

What is the definition of a line?

Back

A straight path that extends infinitely in both directions.

Tags

CCSS.4.G.A.1

Front

What is the definition of an angle?

Back

A figure formed by two rays with a common endpoint called the vertex.

Front

What is the definition of a point?

Back

A location in space that has no size or dimension.

Tags

CCSS.HSG.CO.A.1

Front

What is the definition of a plane?

Back

A flat surface that extends infinitely in all directions.

Tags

CCSS.HSG.CO.A.1