Chapter 14 Mega Vocabulary

A location shown by a dot. 

• point

• line

• ray

• endpoint

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

• point

• line

• ray

• endpoint

A part of a line that has one endpoint and extends in the opposite directions without ending. 

• point

• line

• ray

• endpoint

The ending of a ray or a line segment. It is a point. 

• point

• line

• ray

• endpoint

The part of a line between two endpoints. 

• endpoint

• line

• line segment

• ray

A geometric shape formed when two rays share the same endpoint. It is measured in degrees. 

• angle

• degree

• right angle

• acute angle

A unit used to measure an angle. 

• angle

• degree

• right angle

• acute angle

An angle that measures 90 degrees. 

• angle

• degree

• right angle

• acute angle

An angle with a measure greater than 1 degree by less than 90 degrees. 

• angle

• degree

• right angle

• acute angle

An angle with a measure greater than 90 degrees by less than 180 degrees. 

• obtuse angle

• degree

• right angle

• acute angle