Circle Measurements: Radius, Diameter, and Area Fun!

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

• 30π square meters

• 20π square meters

• 15π square meters

• 25π square meters

The diameter of a pizza is 12 inches. What is the circumference of the pizza? (Use the formula C = πd)

• 40.84 inches

• 25.12 inches

• 37.68 inches

• 31.42 inches

A round swimming pool has a radius of 10 feet. How much water (in square feet) is needed to cover the pool's surface?

• 100π square feet

• 50π square feet

• 200 square feet

• 30π square feet

If the diameter of a hula hoop is 24 inches, what is its radius?

• 14 inches

• 16 inches

• 12 inches

• 10 inches

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

• 100 meters

• 80 meters

• 63.66 meters

• 50 meters

A circular table has a radius of 3 feet. What is the area of the tabletop? (Use the formula A = πr²)

• 9π square feet

• 6π square feet

• 12π square feet

• 3π square feet

The diameter of a wheel is 28 inches. How far does the wheel travel in one complete rotation? (Use the formula C = πd)

• 56.52 inches

• 87.92 inches

• 78.54 inches

• 100.24 inches

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

• 6π meters

• 12π meters

• 8π meters

• 10π meters

If a circular pizza has an area of 50 square inches, what is its radius? (Use the formula A = πr²)

• 3.0 inches

• 4.5 inches

• 3.99 inches

• 5.0 inches

A circular garden has a diameter of 10 meters. What is the area of the garden? (Use the formula A = πr²)

• 25π square meters

• 30π square meters

• 15π square meters

• 20π square meters