Circumference & Radius: Fun Challenges for Grade 6

A circular garden has a diameter of 10 meters. What is the circumference of the garden?

• 40.84 meters

• 25.12 meters

• 31.42 meters

• 15.70 meters

If the circumference of a bicycle wheel is 62 inches, what is the radius of the wheel?

• 11.3 inches

• 9.87 inches

• 10.5 inches

• 8.2 inches

A round swimming pool has a circumference of 31.4 feet. What is the radius of the pool?

• 3 feet

• 7 feet

• 5 feet

• 10 feet

A circular track has a radius of 15 meters. Calculate the circumference of the track.

• 75.40 meters

• 100.50 meters

• 94.25 meters

• 85.00 meters

The circumference of a pizza is 25.12 inches. What is the radius of the pizza?

• 3 inches

• 4 inches

• 6 inches

• 5 inches

A circular fountain has a diameter of 8 feet. What is the circumference of the fountain?

• 15.70 feet

• 30.16 feet

• 20.24 feet

• 25.13 feet

If a circular table has a circumference of 18.84 feet, what is the radius of the table?

• 5 feet

• 3 feet

• 4 feet

• 2 feet

A hula hoop has a radius of 2 feet. What is the circumference of the hula hoop?

• 8π feet

• 6 feet

• 4π feet

• 2π feet

The circumference of a circular garden is 62.8 meters. What is the diameter of the garden?

• 20 meters

• 30 meters

• 25 meters

• 15 meters

A circular clock has a radius of 6 inches. Calculate the circumference of the clock.

• 37.68 inches

• 18.84 inches

• 43.96 inches

• 25.12 inches