4th Grade Geometry Vocabulary

Front

What is a ray?

Back

A ray is part of a line that begins at one endpoint and continues without end in one direction.

Front

What are parallel lines?

Back

Parallel lines are lines that lie in the same plane, never intersect, and are always the same distance apart.

Front

What is a line segment?

Back

A line segment is part of a line that has two endpoints.

Front

What is an angle?

Back

An angle is formed by two rays that share a common endpoint.

Front

What is a line?

Back

A line is a straight path that extends infinitely in both directions.

Front

What are intersecting lines?

Back

Intersecting lines are lines that cross each other at one point.

Front

What are perpendicular lines?

Back

Perpendicular lines are lines that intersect to form right angles.

Front

What is a point?

Back

A point is a specific location in space that has no size or dimension.

Front

What is a right angle?

Back

A right angle is an angle that measures exactly 90 degrees.

Front

What is a degree?

Back

A degree is a unit of measurement for angles.