Identifying Complementary & Supplementary

Front

What is a straight angle?

Back

A straight angle measures 180 degrees.

Front

What is the measure of a right angle?

Back

A right angle measures exactly 90 degrees.

Front

What are supplementary angles?

Back

Supplementary angles are two angles that add up to 180 degrees.

Front

What is the sum of the angles in a triangle?

Back

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

Front

If one angle measures 120 degrees, what is the measure of its supplementary angle?

Back

The supplementary angle measures 60 degrees.

Front

What is an acute angle?

Back

An acute angle is an angle that measures less than 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

If two angles are complementary, what is their sum?

Back

The sum of complementary angles is 90 degrees.

Front

What is the measure of a full rotation?

Back

A full rotation measures 360 degrees.

Front

If one angle measures 45 degrees, what is the measure of its complementary angle?

Back

The complementary angle measures 45 degrees.