Identifying Angles

Front

What is an acute angle?

Back

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

Front

What is a right angle?

Back

A right angle is an angle that measures exactly 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 straight angle?

Back

A straight angle is an angle that measures exactly 180 degrees.

Front

What type of angle is 0 degrees?

Back

A zero angle.

Front

What type of angle is 30 degrees?

Back

An acute angle.

Front

What type of angle is 90 degrees?

Back

A right angle.

Front

What type of angle is 120 degrees?

Back

An obtuse angle.

Front

What type of angle is 180 degrees?

Back

A straight angle.

Front

What is the sum of angles in a triangle?

Back

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