Protractor Practice

Front

What is a protractor used for?

Back

A protractor is used to measure angles in degrees.

Front

What is the measure of a right angle?

Back

A right angle measures 90 degrees.

Front

What type of angle measures less than 90 degrees?

Back

An acute angle.

Front

What type of angle measures more than 90 degrees but less than 180 degrees?

Back

An obtuse angle.

Front

What is the measure of a straight angle?

Back

A straight angle measures 180 degrees.

Front

What do you call the point where two lines meet?

Back

A vertex.

Front

If an angle measures 0 degrees, what type of angle is it?

Back

It is called a zero angle.

Front

What is the sum of angles in a triangle?

Back

The sum of angles in a triangle is always 180 degrees.

Front

What is an angle that measures exactly 180 degrees called?

Back

A straight angle.

Front

What is the measure of an angle that is complementary to a 30-degree angle?

Back

60 degrees.