Geometry Vocabulary- Module 4

Front

What are parallel lines?

Back

Lines that do not cross.

Front

What are perpendicular lines?

Back

Lines that form right angles at the point where they cross.

Front

What are intersecting lines?

Back

Lines that cross over each other.

Front

What is a ray?

Back

A straight path that begins at a point and goes on forever in one direction.

Front

What is a line segment?

Back

Part of a line with two endpoints.

Front

What is a point in geometry?

Back

A location on a flat plane with no size or dimension.

Front

What is a line in geometry?

Back

A straight path that goes on forever in two directions.

Front

What is a plane?

Back

A flat surface that extends infinitely in all directions.

Front

What is a triangle?

Back

A polygon with three sides and three angles.

Front

What is a quadrilateral?

Back

A polygon with four sides.