🌟Complementary and Supplementary Angles

Front

What are complementary angles?

Back

Complementary angles are two angles whose measures add up to 90 degrees.

Front

What are supplementary angles?

Back

Supplementary angles are two angles whose measures add up to 180 degrees.

Front

If angle A is 70 degrees, what is the measure of its complementary angle?

Back

20 degrees.

Front

If angle B is 110 degrees, what is the measure of its supplementary angle?

Back

70 degrees.

Front

What is an example of a pair of complementary angles?

Back

45° and 45°.

Front

What is an example of a pair of supplementary angles?

Back

120° and 60°.

Front

If two angles are complementary, and one angle measures 25 degrees, what is the measure of the other angle?

Back

65 degrees.

Front

If two angles are supplementary, and one angle measures 90 degrees, what is the measure of the other angle?

Back

90 degrees.

Front

Find x if the angles are complementary: x + 30 = 90.

Back

x = 60.

Front

Find x if the angles are supplementary: x + 45 = 180.

Back

x = 135.