Types of Angles and Lines

Front

What is a line segment?

Back

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

Front

What is a ray?

Back

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

Front

What is a line?

Back

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

Front

What is an acute angle?

Back

An acute angle is an angle that is less than 90 degrees.

Front

What is a right angle?

Back

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

Front

What is an obtuse angle?

Back

An obtuse angle is an angle that is greater than 90 degrees and less than 180 degrees.

Front

What is a straight angle?

Back

A straight angle is an angle that is exactly 180 degrees.

Front

How many degrees are in a full circle?

Back

There are 360 degrees in a full circle.

Front

What type of angles do stop signs have?

Back

Stop signs have obtuse angles.

Front

What is the sum of angles in a triangle?

Back

The sum of angles in a triangle is always 180 degrees.