Geometry Vocab

Front

What is a line?

Back

A straight path that extends in two opposite directions without end, containing infinitely many points.

Front

What is a right angle?

Back

An angle that measures exactly 90 degrees.

Front

What is a ray?

Back

Part of a line that consists of one endpoint and all the points of the line on one side of the endpoint.

Front

What is a point?

Back

A location that has no size.

Front

What is an obtuse angle?

Back

An angle that measures more than 90 degrees.

Front

What is a line segment?

Back

Part of a line that consists of two endpoints and all the points between them.

Front

What is an acute angle?

Back

An angle that measures less than 90 degrees.

Front

What is a straight angle?

Back

An angle that measures exactly 180 degrees.

Front

What is a perpendicular line?

Back

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

Front

What is a transversal?

Back

A line that intersects two or more lines at different points.