Angles

Front

What is an angle?

Back

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

Front

What is a right angle?

Back

A right angle measures exactly 90 degrees.

Front

What is an acute angle?

Back

An acute angle measures less than 90 degrees.

Front

What is an obtuse angle?

Back

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

Front

What is a straight angle?

Back

A straight angle measures exactly 180 degrees.

Front

How many degrees are in a full turn?

Back

A full turn is 360 degrees.

Front

What is the measurement of 4 right angles?

Back

4 right angles equal a full turn, which is 360 degrees.

Front

What is a protractor used for?

Back

A protractor is used to measure angles in degrees.

Front

What is the measurement of an acute angle?

Back

An acute angle can be any measurement less than 90 degrees, such as 35 degrees.

Front

What is the measurement of an obtuse angle?

Back

An obtuse angle can be any measurement greater than 90 degrees and less than 180 degrees, such as 130 degrees.