Circumference Math Quiz

• 31.4 cm

• 15.7 cm

• 20 cm

• 62.8 cm

A circle has a radius of 4 inches. What is its diameter?

• 2 inches

• 8 inches

• 4 inches

• 16 inches

• 43.96 meters

• 21.98 meters

• 14 meters

• 44 meters

• 10 cm

• 20 cm

• 31.4 cm

• 15 cm

A circle has a diameter of 16 feet. What is its radius?

• 8 feet

• 16 feet

• 4 feet

• 32 feet

• 69.08 yards

• 34.54 yards

• 11 yards

• 44 yards

• 7 cm

• 14 cm

• 21.98 cm

• 22 cm

• 75.36 cm

• 24 cm

• 48 cm

• 37.68 cm

A circle has a radius of 9 inches. What is its diameter?

• 18 inches

• 9 inches

• 4.5 inches

• 36 inches

• 34.54 yards

• 11 yards

• 17.27 yards

• 22 yards