Exploring Circumference: Real-Life Applications of Pi

A circular garden has a diameter of 10 meters. What is the circumference of the garden? Use pi = 3.14 in your calculation.

• 25.6 meters

• 20 meters

• 15.7 meters

• 31.4 meters

A bicycle wheel has a radius of 0.35 meters. How far does the bicycle travel in one complete rotation of the wheel? Use pi = 3.14.

• 2.198 meters

• 2.5 meters

• 3.14 meters

• 1.75 meters

A round swimming pool has a circumference of 31.4 meters. What is the radius of the pool? Use pi = 3.14.

• 3 meters

• 10 meters

• 7 meters

• 5 meters

A circular pizza has a diameter of 12 inches. How much crust is there around the pizza? Calculate the circumference using pi = 3.14.

• 40.84 inches

• 25.12 inches

• 31.42 inches

• 37.68 inches

A circular track has a radius of 50 meters. What is the distance around the track? Use pi = 3.14 in your calculations.

• 3140 meters

• 314 meters

• 400 meters

• 250 meters

A hula hoop has a circumference of 94.2 centimeters. What is the diameter of the hula hoop? Use pi = 3.14 to find the answer.

• 25 cm

• 40 cm

• 30 cm

• 35 cm

A circular fountain has a radius of 2 meters. How much water would be needed to fill the fountain to a depth of 1 meter? Assume the fountain is a cylinder and use pi = 3.14 for your calculations.

• 3.14 cubic meters

• 25.12 cubic meters

• 6.28 cubic meters

• 12.56 cubic meters

A round table has a circumference of 62.8 inches. What is the diameter of the table? Use pi = 3.14 in your calculations.

• 20 inches

• 15 inches

• 25 inches

• 30 inches

A circular race track has a circumference of 400 meters. If a runner completes 5 laps, how far do they run in total?

• 1800 meters

• 2000 meters

• 2500 meters

• 1500 meters

A circular garden path has a radius of 4 feet. What is the length of the path? Use pi = 3.14 to calculate the circumference.

• 31.42 feet

• 20.56 feet

• 25.12 feet

• 15.70 feet