Naming Angle Relationships

These angles are...

• Complementary
• Supplementary
• Neither

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.

∠1 and ∠3 can best be described as -

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

The angle relationship shown is -

• complementary angles
• supplementary angles
• vertical angles
• angle bisector

Identify the relationship:

• vertical

• supplementary (angles add up to 180^o)

• complementary (angles add up to 90^o)

Vertical angles are always

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

What angle pair is pictured?

• Adjacent Angles

• Supplementary Angles

• Vertical Angles

• Complementary Angles

Level 3: What angle is complementary to angle 4?

• ∠5

• ∠3

• ∠2

• ∠1

Level 3: What angle is vertical to angle 2?

• ∠4

• ∠1

• ∠2

• ∠5

Level 3: What angle is adjacent and supplementary to angle 5?

• ∠4

• ∠1

• ∠3

• ∠2