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 complete angle?

Back

A complete angle is an angle that measures exactly 360 degrees.

Front

How do you identify an acute angle visually?

Back

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

Front

How do you identify an obtuse angle visually?

Back

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

Front

How do you identify a right angle visually?

Back

A right angle forms a perfect corner, like the corner of a square.

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 formed by the hands of a clock at 3:00?

Back

The angle formed is a right angle.

Front

What type of angle is formed by the hands of a clock at 10:00?

Back

The angle formed is an obtuse angle.