lines and angles

Front

A ___________ has one endpoint and continues forever in one direction.

Back

ray

Front

What type of lines are n and p?

Back

parallel lines

Front

What kind of lines are shown?

Back

perpendicular lines

Front

Which of the following is an acute angle?

Back

An angle less than 90 degrees.

Front

Which of the following is an obtuse angle?

Back

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

Front

What do we call two lines that never meet?

Back

parallel lines

Front

What do we call two lines that meet at a right angle?

Back

perpendicular lines

Front

What is the measure of a right angle?

Back

90 degrees

Front

What is an angle that measures exactly 180 degrees called?

Back

straight angle

Front

What is an angle that measures less than 90 degrees called?

Back

acute angle