Angle 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.

Tags

CCSS.7.G.B.5

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

Tags

CCSS.7.G.B.5

Vertical angles are always

• total 90 degrees

• total 180 degrees

• congruent (equal measures)

• adjacent angles

Tags

CCSS.7.G.B.5

• 9x - 10 = 90

• 9x + 10 = 90

• 9x + 2 = 90

• 9x - 2 = 90

Tags

CCSS.7.G.B.5

Find the value of x.

• 14
• 60
• 35
• 180

Tags

CCSS.7.G.B.5

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

Tags

CCSS.7.G.B.5

Find the value of x

• 15

• 16

• 18

• 19

Tags

CCSS.7.G.B.5

Solve for x

• 6
• 140
• 20
• 90

Tags

CCSS.7.G.B.5

What is the value of x?

• 6

• 9

• 18

• 68

Tags

CCSS.7.G.B.5

• 124

• 112

• 62

• 56

Tags

CCSS.4.MD.C.7