Circumference Challenges: Problem-Solving for 6th Grade

A circular garden has a radius of 5 meters. What is the circumference of the garden? (Use 3.14 for π)

• 15.7 meters

• 25.4 meters

• 31.4 meters

• 40 meters

If a bicycle tire has a circumference of 2.1 meters, how many meters will it travel after 10 complete rotations?

• 15 meters

• 25 meters

• 30 meters

• 21 meters

A round swimming pool has a diameter of 12 feet. What is the circumference of the pool? (Use 3.14 for π)

• 40.84 feet

• 37.68 feet

• 25.12 feet

• 31.42 feet

A circular track has a circumference of 400 meters. If you run 3 laps, how many meters have you run in total?

• 1500 meters

• 1200 meters

• 1000 meters

• 800 meters

A pizza has a diameter of 14 inches. What is the circumference of the pizza? (Use 3.14 for π)

• 43.96 inches

• 44.00 inches

• 28.26 inches

• 39.48 inches

If a circular fountain has a circumference of 31.4 feet, what is its radius? (Use 3.14 for π)

• 10 feet

• 7 feet

• 3 feet

• 5 feet

A hula hoop has a circumference of 60 centimeters. How many centimeters will it cover if you spin it 5 times?

• 400 centimeters

• 250 centimeters

• 150 centimeters

• 300 centimeters

A circular table has a radius of 1.2 meters. What is the circumference of the table? (Use 3.14 for π)

• 9.42 meters

• 7.54 meters

• 6.28 meters

• 8.00 meters

If a wheel has a circumference of 78 inches, how many inches will it cover after 4 rotations?

• 156 inches

• 240 inches

• 400 inches

• 312 inches

A circular garden path has a diameter of 10 meters. What is the circumference of the path? (Use 3.14 for π)

• 40 meters

• 31.4 meters

• 25.4 meters

• 15.7 meters