Identify Types of Angles

Front

What is an acute angle?

Back

An acute angle is an angle that measures less than 90 degrees.

Front

What is an obtuse angle?

Back

An obtuse angle is an angle that measures more than 90 degrees but less than 180 degrees.

Front

What is a right angle?

Back

A right angle is an angle that measures exactly 90 degrees.

Front

What is a reflex angle?

Back

A reflex angle is an angle that measures more than 180 degrees but less than 360 degrees.

Front

How do you identify an acute angle?

Back

An acute angle can be identified as being sharp and less than 90 degrees.

Front

How do you identify an obtuse angle?

Back

An obtuse angle can be identified as being wide and more than 90 degrees but less than 180 degrees.

Front

How do you identify a right angle?

Back

A right angle can be identified by its square corner, measuring exactly 90 degrees.

Front

How do you identify a reflex angle?

Back

A reflex angle can be identified as being larger than a straight angle, measuring more than 180 degrees.

Front

What is the sum of angles in a triangle?

Back

The sum of angles in a triangle is always 180 degrees.

Front

What type of angle is 45 degrees?

Back

45 degrees is an acute angle.