Complementary, Supplementary, and Vertical Angles

Vertical angles are always

• acute

• total 180 degrees

• congruent (equal measures)

• adjacent angles

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

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°

Tags

CCSS.7.G.B.5

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

• 2x-6=7x+4
• 2x-6+7x+4=90
• 2x-6+7x+4=180
• 2x-6+7x+4=360

Tags

CCSS.7.G.B.5

What is the Value of x?

Mathematical Equivalence

ON

Tags

CCSS.7.G.B.5

Find the value of x.

• 14

• 60

• 35

• 180

Tags

CCSS.7.G.B.5

Which equation would help solve for x?

• (2x) - (6x+ 20) = 90

• (2x) + (6x+ 20) = 90

• (2x) + (6x+ 20) = 180

• (2x) - (6x + 20) = 180

Tags

CCSS.7.G.B.5

Solve for x

• 20

• 25

• 120

• 180

Tags

CCSS.7.G.B.5

Find the value of 7x.

• 70

• 80

• 10

• 180

Tags

CCSS.7.G.B.5