All about Angles

Front

What is an angle?

Back

An angle is formed by two rays (sides) that share a common endpoint (vertex).

Front

What are the types of angles?

Back

The main types of angles are acute (less than 90°), right (exactly 90°), obtuse (more than 90° but less than 180°), and straight (exactly 180°).

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 is the measure of an angle that is acute?

Back

An acute angle measures between 0 and 90 degrees.

Front

What is the measure of an angle that is obtuse?

Back

An obtuse angle measures between 90 and 180 degrees.

Front

If an angle measures 127 degrees, what type of angle is it?

Back

It is an obtuse angle.

Front

What is the measure of a right angle?

Back

A right angle measures 90 degrees.