Complementary and Supplementary Angles

Front

What are complementary angles?

Back

Two angles that add up to 90 degrees.

Tags

CCSS.7.G.B.5

Front

What are supplementary angles?

Back

Two angles that add up to 180 degrees.

Tags

CCSS.7.G.B.5

Front

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

Back

60 degrees.

Tags

CCSS.7.G.B.5

Front

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

Back

60 degrees.

Tags

CCSS.7.G.B.5

Front

What is the sum of the measures of complementary angles?

Back

90 degrees.

Tags

CCSS.7.G.B.5

Front

What is the sum of the measures of supplementary angles?

Back

180 degrees.

Tags

CCSS.7.G.B.5

Front

If two angles are complementary, and one angle measures 45 degrees, what is the measure of the other angle?

Back

45 degrees.

Tags

CCSS.7.G.B.5

Front

If angle C is 75 degrees, what is the measure of its complementary angle?

Back

15 degrees.

Tags

CCSS.7.G.B.5

Front

If angle D is 90 degrees, can it have a complementary angle? Why or why not?

Back

No, because complementary angles must add up to 90 degrees.

Tags

CCSS.7.G.B.5

Front

What is the relationship between complementary and supplementary angles?

Back

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

Tags

CCSS.7.G.B.5