Area and Circumference of Circles

Find the area of a circle with a diameter of 6 inches.

FInd the area of a circle that has a diameter of 4 cm.

A circle has a radius of 9. What is it's area?

• 63.62

• 245.74

• 254.47

• 1017.88

Max has a pizza with a diameter of 100 inches. What is it's area?

• 31415.93

• 7853.98

• 785.398

• 3141.593

• 18.84

• 113.04

• 50.24

What is the diameter of the pictured circle?

• 4 cm

• 8 cm

• 12 cm

• 16 cm

Find the circumference (round to the nearest hundredth).

• 14.13 cm

• 26.28 cm

• 28.26 cm

• 56.52 cm

Alex has trained his puppy, Popper, to jump through a ring. According to Alex's measurements and calculations, the ring has a diameter of 3.5 feet. What is the ring's circumference?

• 11.32 ft

• 12.25 ft

• 10.99 ft

• 8.75 ft

Find the circumference (round to the nearest hundredth).

• 2.55 cm

• 8.36 cm

• 12.56 cm

• 25.12 cm