M1 Find Missing 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 angle A is 25 degrees, what is the measure of its complementary angle?

Back

65 degrees (90 - 25 = 65).

Tags

CCSS.7.G.B.5

Front

If angle B is 160 degrees, what is the measure of its supplementary angle?

Back

20 degrees (180 - 160 = 20).

Tags

CCSS.7.G.B.5

Front

Find the missing angle if one angle is 70 degrees and they are complementary.

Back

20 degrees (90 - 70 = 20).

Tags

CCSS.7.G.B.5

Front

Find the missing angle if one angle is 35 degrees and they are supplementary.

Back

145 degrees (180 - 35 = 145).

Tags

CCSS.7.G.B.5

Front

What is the measure of angle 2 if angle 1 is 38 degrees and they are supplementary?

Back

142 degrees (180 - 38 = 142).

Tags

CCSS.7.G.B.5

Front

Solve for x if x + 10 = 90.

Back

x = 80.

Tags

CCSS.8.G.A.5

Front

Solve for x if 2x + 10 = 180.

Back

x = 85.

Tags

CCSS.8.G.A.5

Front

If two angles are complementary and one angle is x, what is the other angle?

Back

90 - x.

Tags

CCSS.7.G.B.5