Points, Lines, Line Segments, Rays, and Angles

Front

What is a line segment?

Back

A part of a line between two endpoints.

Tags

CCSS.HSG.CO.A.1

Front

What is a ray?

Back

A part of a line that starts at one point and goes on forever in one direction.

Tags

CCSS.4.G.A.1

Front

What is a line?

Back

A straight set of points that goes on forever in both directions.

Tags

CCSS.4.G.A.1

Front

What is an angle?

Back

The space between two intersecting lines or rays.

Front

What is an acute angle?

Back

An angle that is less than 90 degrees.

Tags

CCSS.4.G.A.1

Front

What is an obtuse angle?

Back

An angle that is greater than 90 degrees but less than 180 degrees.

Tags

CCSS.4.G.A.1

Front

What is a right angle?

Back

An angle that is exactly 90 degrees.

Tags

CCSS.4.G.A.1

Front

What are parallel lines?

Back

Lines that never intersect 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 point?

Back

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

Tags

CCSS.4.G.A.1