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 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

If one angle in a triangle is 90 degrees, what type of triangle is it?

Back

It is a right triangle.

Front

What is the measure of a full rotation?

Back

A full rotation measures 360 degrees.

Front

What type of angle is 127 degrees?

Back

127 degrees is an obtuse angle.

Front

What type of angle is 53 degrees?

Back

53 degrees is an acute angle.