4th Grade Geometry Vocabulary

Front

What is a ray?

Back

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

Tags

CCSS.4.G.A.1

Front

What is a point?

Back

A point is a single dot.

Tags

CCSS.4.G.A.1

Front

What are parallel lines?

Back

Lines that run in the same direction and never meet.

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 line segment?

Back

A part of a line that has two endpoints.

Tags

CCSS.HSG.CO.A.1

Front

What is an angle?

Back

An angle is 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 does it mean for lines to intersect?

Back

To intersect means that two lines cross each other at a point.

Tags

CCSS.HSG.CO.A.1

Front

What is a degree in geometry?

Back

A degree is a unit of measurement for angles.

Tags

CCSS.4.MD.C.6

Front

What is an example of intersecting lines?

Back

Two streets that cross each other.

Tags

CCSS.4.G.A.1

CCSS.HSG.CO.A.1