Angle Relationships

complementary, supplementary, or neither?

• Complementary
• Supplementary
• Neither

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

Vertical angles are always

• acute
• total 180 degrees
• congruent (equal measures)
• adjacent angles

What angle pair is pictured?

• Alternate Interior Angles
• Supplementary Angles
• Vertical Angles
• Corresponding Angles

Supplementary Angles measure _____ degrees.

• 180
• 55
• 100
• 90

What is the complement angle to 12°?

• 78°
• 68°
• 168°
• 90°

What is the measure of ∠2?

• 38
• 58
• 71
• 142

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.

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 is the definition of acute angles?

• Angles that measure less than 90⁰

• Angles that measures exactly 90⁰

• Angles that measure more than 90⁰

• Angles that measures exactly 180⁰