Types of Lines and Angles

Front

What is a line that has a defined start and end point called?

Back

Segment

Front

What is a line that extends infinitely in one direction called?

Back

Ray

Front

How many degrees are in a right angle?

Back

90 degrees

Front

What type of angle is less than 90 degrees?

Back

Acute angle

Front

What do you call two rays that have a common endpoint?

Back

Angle

Front

What is a straight line that extends infinitely in both directions called?

Back

Line

Front

What type of angle is greater than 90 degrees but less than 180 degrees?

Back

Obtuse angle

Front

What is the term for an angle that is exactly 180 degrees?

Back

Straight angle

Front

What do you call the point where two lines meet?

Back

Vertex

Front

What is the term for the space between two intersecting lines?

Back

Angle