Unit 7 Review

The sum of the measures of angle A and angle B is 90.

• The measure of angle A is (3x + 15)°
• The measure of angle B is 45°.

What is the value of x?

• 45º

• 10°

• 30°

• 75°

Which equation can be used to solve for the value of x?

• 48 + 2x = 180

• 48 + 2x = 90

• 2(48) + x = 180

• 48 + 2x = 360

Tags

CCSS.8.G.A.5

Which equation could be uses to solve for the value of x?

• x + 2x − 5 = 180

• 107 + 2x − 5 = 180

• 107 + 2x − 5 + x = 180

• x + 2x − 5 = 107

Tags

CCSS.8.G.A.5

What is the value of x in the figure?

• 9

• 10

• 18

• 36

Tags

CCSS.8.G.A.5

What is the formula for circumference of a circle given the diameter?

• C = pi x r
• C = pi x 2r
• C = pi x D
• C = pi x 2D

Tags

CCSS.7.G.B.4

What is the circumference?

• 48
• 96
• 24
• 18

Tags

CCSS.7.G.B.4

What is the circumference of this circle?

• 3.14 cm 
• 37.7 cm
• 24 cm
• 68.4 cm

Tags

CCSS.7.G.B.4

What is the formula for circumference of a circle given the radius?

• C = pi x r
• C = pi x 2r
• C = pi x D
• C = pi x 2D

Tags

CCSS.7.G.B.4

A minute hand (radius) of a clock is 22 feet long. What is the circumference of the clock?

• 138.16 feet
• 119.12 feet
• 118.24 feet
• 133.82 feet

Tags

CCSS.7.G.B.4

What is the circumference of a 12 inch (diameter) pizza?

• 37.68 inches
• 36.68 inches
• 35.68 inches
• 34.68 inches

Tags

CCSS.7.G.B.4