Complementary and Supplementary Angles

Front

What are complementary angles?

Back

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

Tags

CCSS.7.G.B.5

Front

What are supplementary angles?

Back

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

Tags

CCSS.7.G.B.5

Front

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

Back

60 degrees.

Tags

CCSS.7.G.B.5

Front

If one angle measures 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 two complementary angles?

Back

90 degrees.

Tags

CCSS.7.G.B.5

Front

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

Back

180 degrees.

Tags

CCSS.7.G.B.5

Front

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

Back

45 degrees.

Tags

CCSS.7.G.B.5

Front

If angle C is 75 degrees, what is the measure of angle D if they are supplementary?

Back

105 degrees.

Tags

CCSS.7.G.B.5

Front

How do you find the measure of a missing angle when given one angle in a complementary pair?

Back

Subtract the given angle from 90 degrees.

Tags

CCSS.7.G.B.5

Front

How do you find the measure of a missing angle when given one angle in a supplementary pair?

Back

Subtract the given angle from 180 degrees.

Tags

CCSS.7.G.B.5