Supplementary Angles - Find the Missing Angle

Supplementary angles are angles that _________.

• add up to 90°

• add up to 180°

• add up to 360°

• are equal to each other

Tags

CCSS.7.G.B.5

If angle A and angle B are supplementary angles and you know angle B, what method can you use to find angle A?

• Add angle B to 180°

• Subtract angle B from 180°

• Add angle B to 90°

• Subtract angle B from 90°

Tags

CCSS.7.G.B.5

Find the measurement of angle A.

• 39°

• 180°

• 90°

• 141°

Tags

CCSS.7.G.B.5

Find the measurement of angle A.

• 180°

• 157°

• 23°

• 67°

Tags

CCSS.7.G.B.5

Find the measurement of angle A.

• 88°

• 92°

• 180°

• 2°

Tags

CCSS.7.G.B.5

Find the measurement of angle A.

• 30°

• 120°

• 60°

• 180°

Tags

CCSS.7.G.B.5

Find the measurement of angle A.

• 180°

• 29°

• 61°

• 119°

Tags

CCSS.7.G.B.5

Find the measurement of angle A.

• 28°

• 62°

• 152°

• 180°

Tags

CCSS.7.G.B.5

Find the measurement of angle A.

• 128°

• 52°

• 38°

• 180°

Tags

CCSS.7.G.B.5

Find the measurement of angle A.

• 121°

• 59°

• 180°

• 31°

Tags

CCSS.7.G.B.5