Circle Challenges: Radius, Diameter, and Word Problems

A circle has a radius of 5 cm. What is the diameter of the circle?

• 12 cm

• 8 cm

• 15 cm

• 10 cm

If the diameter of a pizza is 12 inches, what is the radius?

• 6 inches

• 10 inches

• 8 inches

• 4 inches

A circular garden has a radius of 10 feet. How long is the diameter?

• 20 feet

• 30 feet

• 15 feet

• 25 feet

The radius of a hula hoop is 3 feet. How far is it across the hoop (diameter)?

• 10 feet

• 6 feet

• 8 feet

• 4 feet

A round table has a diameter of 8 feet. What is the radius of the table?

• 4 feet

• 6 feet

• 2 feet

• 10 feet

If a circular pond has a radius of 4 meters, what is the distance across the pond?

• 8 meters

• 6 meters

• 10 meters

• 12 meters

A bicycle wheel has a diameter of 26 inches. What is the radius of the wheel?

• 13 inches

• 15 inches

• 14 inches

• 12 inches

The radius of a basketball is 6 inches. What is the diameter of the basketball?

• 8 inches

• 10 inches

• 12 inches

• 14 inches

A circular track has a diameter of 50 meters. What is the radius of the track?

• 30 meters

• 40 meters

• 25 meters

• 20 meters

If a circular clock has a radius of 15 cm, what is the diameter of the clock?

• 35 cm

• 20 cm

• 30 cm

• 25 cm