Angles

Front

What is an acute angle?

Back

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

Front

What is an obtuse angle?

Back

An obtuse angle is an angle that is more than 90 degrees.

Front

What is the measure of a right angle?

Back

A right angle measures exactly 90 degrees.

Front

How do you classify angles based on their measures?

Back

Angles can be classified as acute (less than 90 degrees), right (exactly 90 degrees), obtuse (more than 90 degrees), straight (exactly 180 degrees), and reflex (more than 180 degrees but less than 360 degrees).

Front

What type of angle is 45 degrees?

Back

45 degrees is an acute angle.

Front

What type of angle is 120 degrees?

Back

120 degrees is an obtuse angle.

Front

What is a straight angle?

Back

A straight angle is an angle that measures exactly 180 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 can you identify an acute angle visually?

Back

An acute angle appears sharp and is smaller than a right angle.

Front

How can you identify an obtuse angle visually?

Back

An obtuse angle appears wider and is larger than a right angle.