Identifying Angles

Front

What type of angle is less than 90 degrees?

Back

Acute angle

Front

What type of angle is exactly 90 degrees?

Back

Right angle

Front

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

Back

Obtuse angle

Front

What type of angle is exactly 180 degrees?

Back

Straight angle

Front

What type of angle is more than 180 degrees but less than 360 degrees?

Back

Reflex angle

Front

What is the vertex of an angle?

Back

The point where the two rays meet.

Front

How many degrees are in a full rotation?

Back

360 degrees

Front

What is the measure of a right angle?

Back

90 degrees

Front

What is the measure of an acute angle?

Back

Less than 90 degrees

Front

What is the measure of an obtuse angle?

Back

More than 90 degrees but less than 180 degrees