Angle Pairs

What are supplementary 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

What are vertical angles?

• Angles that are adjacent to each other
• Angles that add up to 180°
• Angles that are opposite of each other when lines intersect
• Angles that add up to 90°

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.

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

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

• Complementary; x=3.4
• Complementary; x=45
• Supplementary; x=20
• Supplementary; x=175

Which are pairs of vertical angles?

• ∠COB & ∠COA
• ∠AOD & ∠AOC
• ∠COB & ∠AOD
• ∠BOD & ∠AOD

Find the value of x.

• 14
• 60
• 35
• 180

CHALLENGE: Find the values of x and y.

• x=7 ; y=25
• x=5 ; y=25
• x=7 ; y=5
• x=5; y=5

You CAN conclude the following from an unmarked diagram. Select all that apply.

• Angles are vertical angles.

• Angles or segments are congruent.

• An angle is a right angle.

• Angles are adjacent and supplementary.

• Angles are complementary.

Identify the angle pair.

• Complementary angles
• Congruent angles
• Linear Pair
• Vertical Angles