Points, Lines, Line Segments, Rays, and Angles

Front

What is an acute angle?

Back

An angle that is open less than a right angle and has a measure less than 90 degrees.

Tags

CCSS.4.G.A.1

Front

What is a line segment?

Back

A part of a line with two endpoints.

Tags

CCSS.HSG.CO.A.1

Front

What type of angle measures 180 degrees?

Back

Straight angle.

Tags

CCSS.4.G.A.1

Front

What is a line?

Back

A straight path of points that goes on and on in two directions.

Tags

CCSS.4.G.A.1

Front

What is a ray?

Back

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

Tags

CCSS.4.G.A.1

Front

What is an obtuse angle?

Back

An angle that is open more than a right angle but less than a straight angle, measuring between 90 and 180 degrees.

Tags

CCSS.4.G.A.1

Front

What is a right angle?

Back

An angle that forms a square corner and has a measure of 90 degrees.

Tags

CCSS.4.G.A.1

Front

What is a point?

Back

An exact location in space with no size or dimension.

Tags

CCSS.4.G.A.1

Front

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

Back

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

Tags

CCSS.4.G.A.1

Front

What do we call two lines that never intersect?

Back

Parallel lines.

Tags

CCSS.HSG.CO.A.1