Angle Pairs!

Front

What are complementary angles?

Back

Two angles that add up to 90 degrees.

Front

What are supplementary angles?

Back

Two angles that add up to 180 degrees.

Front

What are vertical angles?

Back

Angles that are opposite each other when two lines intersect; they are always equal.

Front

If angle A and angle B are supplementary, and angle A measures 70 degrees, what is the measure of angle B?

Back

Angle B measures 110 degrees.

Front

If angle C and angle D are complementary, and angle C measures 30 degrees, what is the measure of angle D?

Back

Angle D measures 60 degrees.

Front

What is the relationship between two angles that form a linear pair?

Back

They are supplementary.

Front

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

Back

They are equal.

Front

What is the sum of the measures of two complementary angles?

Back

90 degrees.

Front

What is the sum of the measures of two supplementary angles?

Back

180 degrees.

Front

If angle E measures 45 degrees, what is the measure of its complement?

Back

The complement of angle E measures 45 degrees.