Basic Angle Relationships

Front

Complementary angles measures _____ degrees.

Back

90

Front

Vertical angles have the same _____.

Back

angle measure

Front

Two angles that add up to 90 degrees are called _____.

Back

complementary angles

Front

Two angles that add up to 180 degrees are called _____.

Back

supplementary angles

Front

If one angle measures 30 degrees, what is the measure of its complementary angle?

Back

60 degrees

Front

If two angles are vertical, what can we say about their measures?

Back

They are equal.

Front

What is the measure of an angle if its supplement is 110 degrees?

Back

70 degrees

Front

If angle A measures 45 degrees, what is the measure of angle B if they are complementary?

Back

45 degrees

Front

What do we call angles that are formed when two lines intersect?

Back

Vertical angles

Front

If two angles are supplementary and one measures 40 degrees, what is the measure of the other angle?

Back

140 degrees