Circumference Area

Daniel wants to buy cookies for her friend. The
radius of a cookie is 5 inches. What is the cookie’s 
circumference?   Use C=2πr
Pi = 3.14

• 10 in

• 2.5 in

• 15.7 in

• 31.4 in 

What is the area of a circle with a radius of 3?
Use A=πr²

• 9π

• 5π

• 91π

• 34π

What is the diameter of this circle?

• 3.5

• 3

• 5

• 7

Determine the radius of the penny

• 59.66 mm

• 9.5 mm

• 38 mm

• 119.32 mm

• 31.4 cm

• 15.7 cm

• 62.8 cm

• 20.0 cm

• 43.96 cm

• 21.98 cm

• 14.0 cm

• 28.0 cm

• 28.26 cm²

• 18.84 cm²

• 9.42 cm²

• 56.52 cm²

What is the circumference?

• 36

• 18pi

• 108pi

• 36pi

• 50.24 cm²

• 25.12 cm²

• 100.48 cm²

• 75.36 cm²