Complementary, Supplementary, and Vertical Angles

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

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

• Complementary
• Supplementary
• Neither

What is the measure of the missing angle?

• 39
• 129
• 119
• 129

Find the missing angle.

• 60
• 70
• 50
• 140

If ∠H and ∠J are complementary, and the measure of ∠H is 45°, what is the measure of ∠J?

• 135
• 45
• 60
• 55

If ∠C and ∠D are supplementary, and the measure of ∠D is 45°, what is the measure of ∠C?

• 135
• 45
• 125
• 90

Solve for x

• 20
• 25
• 120
• 180

Solve for x

• 5
• 90
• 25
• 10

11) Look at the angles. Which pair of angles is supplementary?

• ∠ 3 and ∠ 6

• ∠ 1 and ∠ 4

• ∠ 3 and ∠ 4

• ∠ 1 and ∠ 6