4th Grade Geometry Vocabulary

Front

What are parallel lines?

Back

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

Tags

CCSS.HSG.CO.A.1

Front

What are perpendicular lines?

Back

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

Tags

CCSS.4.G.A.1

CCSS.HSG.CO.A.1

Front

What is a ray?

Back

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

Tags

CCSS.4.G.A.1

Front

What is a line segment?

Back

A part of a line that has two endpoints.

Tags

CCSS.HSG.CO.A.1

Front

What is an angle?

Back

A figure formed by two rays that share a common endpoint.

Front

What is the difference between a line and a line segment?

Back

A line extends infinitely in both directions, while a line segment has two endpoints.

Tags

CCSS.4.G.A.1

Front

What is the symbol for parallel lines?

Back

The symbol || is used to denote parallel lines.

Tags

CCSS.HSG.CO.A.1

Front

What is the symbol for perpendicular lines?

Back

The symbol ⊥ is used to denote perpendicular lines.

Tags

CCSS.4.G.A.1

CCSS.HSG.CO.A.1

Front

What is a point in geometry?

Back

A location in space that has no size or dimension.

Tags

CCSS.4.G.A.1

Front

What is a degree in terms of angles?

Back

A unit of measurement for angles, where a full circle is 360 degrees.

Tags

CCSS.4.MD.C.5B

CCSS.HSG.CO.A.1