Circle Challenges: Area, Perimeter & Real-World Problems

A circular garden has a radius of 5 meters. What is the area of the garden? (Use the formula A = πr²)

• 20π square meters

• 25π square meters

• 30π square meters

• 15π square meters

A round swimming pool has a diameter of 10 feet. What is the perimeter (circumference) of the pool? (Use the formula C = πd)

• 15.7 feet

• 25.6 feet

• 40 feet

• 31.4 feet

A pizza has a radius of 8 inches. How much cheese is needed to cover the entire pizza? (Calculate the area)

• 150.72 square inches

• 200.96 square inches

• 250.48 square inches

• 180.96 square inches

A circular track has a circumference of 400 meters. What is the radius of the track? (Use the formula C = 2πr)

• 50 meters

• 63.66 meters

• 100 meters

• 80 meters

A circular table has a diameter of 1.5 meters. What is the area of the tabletop? (Use the formula A = πr²)

• 3.1416 square meters

• 0.7854 square meters

• 2.3562 square meters

• 1.7671 square meters

A hula hoop has a radius of 2 feet. How far does it roll in one complete turn? (Calculate the circumference)

• 12.57 feet

• 15.70 feet

• 8.00 feet

• 10.24 feet

A circular fountain has a radius of 3 meters. What is the area of the fountain? (Use the formula A = πr²)

• 3π square meters

• 12π square meters

• 9π square meters

• 6π square meters

A circular rug has a diameter of 6 feet. What is the perimeter of the rug? (Use the formula C = πd)

• 25.12 feet

• 18.84 feet

• 9.42 feet

• 12.56 feet

A circular cake has a radius of 4 inches. How much frosting is needed to cover the top of the cake? (Calculate the area)

• 16π square inches

• 8π square inches

• 20π square inches

• 12π square inches

A circular pond has a circumference of 62.8 meters. What is the area of the pond? (First find the radius using C = 2πr, then use A = πr²)

• 157.08 square meters

• 78.5 square meters

• 200 square meters

• 314.16 square meters