Geometry

Front

What are parallel lines?

Back

Lines that never meet and are always the same distance apart.

Front

What are perpendicular lines?

Back

Lines that intersect at a right angle (90 degrees).

Front

What is a line?

Back

A straight figure that goes on forever in both directions.

Front

What is a point?

Back

An exact location in space with no size or dimension.

Front

What is a line segment?

Back

A part of a line that has two endpoints.

Front

What is a ray?

Back

A part of a line that has one endpoint and goes on forever in one direction.

Front

What is a right angle?

Back

An angle that measures exactly 90 degrees.

Front

What is a triangle?

Back

A three-sided polygon.

Front

What is a quadrilateral?

Back

A four-sided polygon.

Front

What is the sum of angles in a triangle?

Back

180 degrees.