Measuring 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

How do you measure an angle?

Back

You can measure an angle using a protractor.

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 130 degrees?

Back

130 degrees is an obtuse angle.

Front

What type of angle is 45 degrees?

Back

45 degrees is an acute angle.

Front

What is the measure of a right angle in degrees?

Back

A right angle measures 90 degrees.

Front

If an angle measures 20 degrees, what type of angle is it?

Back

20 degrees is an acute angle.