Real-Life Circumference Problems: Measurement Challenges

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

• 15.7 feet

• 31.4 feet

• 20 feet

• 25.4 feet

A bike tire has a radius of 14 inches. Estimate the circumference of the tire. (Use 3.14 for π)

• 87.92 inches

• 92.00 inches

• 85.00 inches

• 78.54 inches

A round table has a circumference of 62.8 inches. What is the diameter of the table? (Use 3.14 for π)

• 25 inches

• 15 inches

• 30 inches

• 20 inches

You are making a circular pizza with a radius of 8 inches. How much crust will you have around the pizza? (Calculate the circumference)

• 25.12 inches

• 62.83 inches

• 50.27 inches

• 40.84 inches

A circular swimming pool has a diameter of 20 feet. If you want to put a fence around it, how many feet of fencing do you need? (Use 3.14 for π)

• 50 feet

• 62.8 feet

• 75.4 feet

• 40 feet

A hula hoop has a circumference of 31.4 inches. What is the radius of the hula hoop? (Use 3.14 for π)

• 5 inches

• 10 inches

• 7 inches

• 3 inches

You are designing a circular track with a circumference of 400 meters. What is the radius of the track? (Use 3.14 for π)

• 100 meters

• 80 meters

• 63.66 meters

• 50 meters

A circular clock has a diameter of 12 inches. Estimate the circumference of the clock. (Use 3.14 for π)

• 37.68 inches

• 31.42 inches

• 40.84 inches

• 25.12 inches

A round cake has a circumference of 25.12 inches. What is the diameter of the cake? (Use 3.14 for π)

• 6 inches

• 10 inches

• 8 inches

• 12 inches

You want to paint a circular mural on a wall that has a radius of 5 feet. How much area will you need to paint? (First find the circumference, then estimate the area)

• 30π square feet

• 15π square feet

• 25π square feet

• 20π square feet