Area of Circles 1/14

What is the diameter?

• 8

• 16

• 10

• 4

What is the circumference?

• 48

• 96

• 50.24

• 18

What is the radius?

• 18

• 72

• 38

• 14

What is the circumference?

• 36

• 56.52

• 108π

• 113.04

Tags

CCSS.7.G.B.4

A bicycle tire has a diameter of 27 inches. What is the radius?

• 27π
• 13.5
• 81
• 25π

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 = 7.5 (3.14)

Daniel wants to buy cookies for her friend. The

radius of a cookie is 5 inches. What is the cookie’s

circumference? C=Pi times Diameter.

• 10 in

• 2.5 in

• 15.7 in

• 31.4 in

What is the circumference of a circle with a diameter of 10 meters?

• 5 meters
• 15.7 meters
• 3.14 meters
• 31.4 meters

Tags

CCSS.7.G.B.4

Find the area of the circle

• 43.96
• 153.86
• 87.82
• 307.72

Tags

CCSS.7.G.B.4

Which formula would you use to correctly find the area of the circle?

• A= (18) (9) (π)

• A= (9) (9) (π)

• A= (9) (π)

• A= (18) (π)