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 straight angle?

Back

180 degrees.

Front

What is the measure of a right angle?

Back

90 degrees.

Front

What is the measure of an acute angle?

Back

An acute angle is less than 90 degrees.

Front

What is the measure of an obtuse angle?

Back

An obtuse angle is greater than 90 degrees but less than 180 degrees.

Front

How do you read a protractor?

Back

To read a protractor, align the baseline of the protractor with one side of the angle and read the measurement where the other side intersects the numbered scale.

Front

What is the difference between complementary and supplementary angles?

Back

Complementary angles add up to 90 degrees, while supplementary angles add up to 180 degrees.

Front

What is the measure of a full rotation?

Back

A full rotation measures 360 degrees.

Front

What is the formula to find the measure of an angle in a triangle?

Back

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

Front

What is a reflex angle?

Back

A reflex angle is an angle that measures more than 180 degrees but less than 360 degrees.