Circumference and Area Challenges for 6th Graders

A circular garden has a radius of 5 meters. What is the circumference of the garden?

• 15.71 meters

• 40.84 meters

• 25.00 meters

• 31.42 meters

If a pizza has a diameter of 12 inches, what is its circumference?

• Approximately 31.4 inches

• Approximately 25.1 inches

• Approximately 37.7 inches

• Approximately 45.2 inches

A circular swimming pool has a radius of 10 feet. How much fencing is needed to go around the pool?

• 50 feet

• 75.4 feet

• 62.83 feet

• 40 feet

A wheel has a radius of 3 feet. How far does the wheel travel in one complete rotation?

• 6π feet

• 12 feet

• 9 feet

• 3π feet

A circular track has a circumference of 400 meters. What is the radius of the track?

• 100 meters

• 80 meters

• 63.66 meters

• 50 meters

If a circular table has a diameter of 2 meters, what is the area of the table?

• 3.14 square meters

• 4.0 square meters

• 6.28 square meters

• 1.57 square meters

A circular fountain has a radius of 4 feet. What is the area of the fountain?

• 20π square feet

• 8π square feet

• 12π square feet

• 16π square feet

A bicycle tire has a circumference of 66 inches. What is the diameter of the tire?

• 21 inches

• 18 inches

• 30 inches

• 24 inches

A circular pizza has an area of 78.5 square inches. What is the radius of the pizza?

• 7 inches

• 4 inches

• 5 inches

• 6 inches

If a circular garden has a circumference of 31.4 meters, what is the radius of the garden?

• 10 meters

• 3 meters

• 7 meters

• 5 meters