Area and Circumference of Circles

A dog is tied to a wooden stake in a backyard. His leash is 3 meters long and he runs around in circles pulling the leash as far as it can go. How much area does the dog have to run around in?

• 113.04 square meters
• 9.42 square meters
• 18.84 square meters
• 28.26 square meters

Tags

CCSS.7.G.B.4

What is the circumference of a 12-inch pizza?

• 37.68 inches
• 18.84 inches
• 113.04 inches
• 432.16 inches

Tags

CCSS.7.G.B.4

A lawn sprinkler sprays water 5 feet in every direction as it rotates. What is the area of the sprinkled lawn?

• 31.4 square feet
• 15.7 square feet
• 19.63 square feet
• 78.5 square feet

Tags

CCSS.7.G.B.4

The distance around the wheel of a truck is 9.42 feet. What is the radius of the wheel?

• 3 feet
• 1.5 square feet
• 1.5 feet
• 29.58 square feet

Tags

CCSS.7.G.B.4

A dinner plate has a radius of 7 centimeters. What is the area?  Use 22/7 for pi.

• 44 square centimeters
• 154 square centimeters
• 153.86 square centimeters
• 43.96 square centimeters

Tags

CCSS.7.G.B.4