Circumference Challenges: Radius and Diameter Fun!

A circular garden has a radius of 4 meters. What is the circumference of the garden? (Use C = 2πr)

• 6π meters

• 8π meters

• 10π meters

• 12π meters

If the diameter of a pizza is 12 inches, what is the circumference? (Use C = πd)

• 25.12 inches

• 40.84 inches

• 37.68 inches

• 31.42 inches

A bicycle wheel has a radius of 14 inches. How far does the bike travel in one complete rotation of the wheel? (Use C = 2πr)

• 14π inches

• 28π inches

• 56π inches

• 28 inches

A circular swimming pool has a circumference of 31.4 meters. What is the diameter of the pool? (Use C = πd)

• 12.5 meters

• 5 meters

• 10 meters

• 15 meters

The radius of a circular track is 10 meters. How much distance does a runner cover after completing one lap? (Use C = 2πr)

• 50.24 meters

• 62.83 meters

• 78.54 meters

• 31.42 meters

A round table has a diameter of 5 feet. What is the circumference of the table? (Use C = πd)

• 15.71 feet

• 10.00 feet

• 12.57 feet

• 18.85 feet

If a circular fountain has a radius of 3 feet, what is its circumference? (Use C = 2πr)

• 9π feet

• 3π feet

• 6π feet

• 12π feet

A circular pizza has a circumference of 18.84 inches. What is the radius of the pizza? (Use C = 2πr)

• 3 inches

• 5 inches

• 4 inches

• 2 inches

The diameter of a hula hoop is 24 inches. What is the circumference? (Use C = πd)

• 78.5398 inches

• 75.3982 inches

• 62.8319 inches

• 50.2655 inches

A circular clock has a radius of 6 inches. How far does the minute hand travel in one hour? (Use C = 2πr)

• 6π inches

• 12 inches

• 12π inches

• 24 inches