Complementary and Supplementary Angles

Two angles added together to produce 90 degrees

• Supplementary

• Complementary

• Right

• Vertical

Find the missing angle.

• 60

• 70

• 50

• 140

These angles are...

• Complementary

• Supplementary

• Neither

Find x:

• 3

• 93

• 103

• 87

What are complementary angles?

• Angles that add up to 180°

• Angles that add up to 90°

• Angles that are equal to each other

• Angles that are opposite of each other when lines intersect.

Are these angles an example of complementary, supplementary, or neither?

• Complementary

• Supplementary

• Neither

Find the value of x.

• 15

• 16

• 18

• 19

What is an example of a pair of complementary angles?

• 13° and 45°

• 10° and 170°

• 81° and 9°

• 90° and 3°

Solve for x

• 5

• 90

• 25

• 10

Solve for x

• 20

• 25

• 120

• 180