Angle Pair Relationships

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.

Determine Angle X

• x = 56

• x = 66

• x = 156

• x = 166

Determine Angle X

• x = 118

• x = 108

• x = 28

• x = 58

What kind of angles are shown?

• complementary
• linear pair

• adjacent
• vertical

What is the measure of the missing angle?

• 92
• 102
• 82
• 72

If m∠1 = 30°, then m∠3 = 

• 30°
• 60°
• 150°
• undetermined

The angle relationship shown is - 

• complementary angles
• supplementary angles
• vertical angles
• adjacent angles

∠1 and ∠3 can best be described as -

• complementary angles
• supplementary angles
• vertical angles
• adjacent angles

• 100°
• 80°
• 90°
• 180°

Name the angle relationship.

• Adjacent Angles

• Linear Pair

• Complementary Angles

• Vertical Angles