Complementary Angles Review

Find the missing value A

Tell whether the angles are complementary or supplementary. Then find the value of x.

• Complementary; x=25

• Complementary; x=5

• Supplementary; x=25

• Supplementary; x=5

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.

Choose all answers that apply: Find the angle measurements that are complementary to each other.

• 75 and 105

• 75 and 15

• 25 and 65

• 34 and 146

• 38 and 52

Solve for x

• 20

• 25

• 120

• 180

Solve for x

• 5

• 90

• 25

• 10

Find the value of x.

• 17

• 28

• 68

• 39.5

Find the value of x.

• 13

• 5

• 55

• 54

• x = 56

• x = 66

• x = 156

• x = 166

Find the value of x.

• 41

• 44

• 128

• 38