90 degree angle

¼ rotation

An 180 degree angle

( ½ rotation)

An angle that is between 90 degrees and 180 degree

Any angle less than 90 degrees

A reflex angle

Any angle is any size angle greater than a straight angle and less than one full rotation

What angles can you see in the classroom?

What is a right angle? What is a straight angle? What is a obtuse angle? What is a acute angle? A _____ angle is a ¼ rotation. A _____ angle is full rotation. A _____ angle is a ½ rotation. A_____ angle is a 1/8 rotation. What is a reflex angle?