Circumference of a Circle

What is the circumference of a circle with a diameter of 1 inch? Use 3.14 for pi.

• 3.14 inches

• 6.28 inches

• 314 inches

• 628 inches

Tags

CCSS.7.G.B.4

What is the circumference of a circle with a radius of 5 in terms of π ?

• 5 π square units

• 10 π square units

• 25 π square units

• 50 π square units

Tags

CCSS.7.G.B.4

Which expression could be used to find the approximate circumference of this quilt piece?

• 2π16

• 2π8

• 2(8)

• 2(4)

Tags

CCSS.7.G.B.4

What is the circumference?

• 48

• 96

• 24

• 18

Tags

CCSS.7.G.B.4

What is the radius?

• 18

• 72

• 38

• 14

Tags

CCSS.7.G.B.4

A DVD has a diameter of 15 millimeters. Which equation would help you determine the circumference?

• c = 15π

• C = 2π15

• c = 15 ÷ π

• c = 15 π

Tags

CCSS.7.G.B.4

What is the formula for the perimeter of a circle? Select all that apply.

• 2 π r

• π d

• π d²

• π r²

Tags

CCSS.7.G.B.4

What does "circumference" mean?

• Space a circle takes up

• Distance around a circle

• Line from one side of a circle to another

• Line from center of circle to side

A DVD has a diameter of 15 millimeters. What is the circumference?

• c = 15π

• C = 2π15

• c = 15/π

• c = 15/2π

Tags

CCSS.7.G.B.4

What is the circumference of the circle? (Circumference = pi x diamter)

• 52.56

• 21.25

• 18.84

• 6.28

Tags

CCSS.7.G.B.4