Mastering Radius and Diameter: Circle Word Problems

A pizza has a diameter of 12 inches. What is the radius of the pizza?

• 6 inches

• 10 inches

• 4 inches

• 8 inches

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

• 8 meters

• 15 meters

• 10 meters

• 12 meters

If a round table has a diameter of 2 feet, how far is it from one edge of the table to the opposite edge?

• 2 feet

• 3 feet

• 1 foot

• 4 feet

A circular swimming pool has a radius of 10 feet. What is the circumference of the pool? (Use 3.14 for π)

• 50.24 feet

• 62.8 feet

• 78.5 feet

• 31.4 feet

A bicycle wheel has a diameter of 26 inches. How long is the wheel's radius?

• 15 inches

• 13 inches

• 12 inches

• 14 inches

A circular track has a radius of 15 meters. How many meters long is the track if you walk around it once? (Use 3.14 for π)

• 94.2 meters

• 75.4 meters

• 30 meters

• 120 meters

A round clock has a diameter of 30 cm. What is the radius of the clock?

• 10 cm

• 15 cm

• 25 cm

• 20 cm

If a circular cake has a radius of 8 inches, what is the diameter of the cake?

• 20 inches

• 12 inches

• 24 inches

• 16 inches

A circular fountain has a radius of 4 feet. How much water would it take to fill the fountain if the depth is 2 feet? (Use 3.14 for π to find the volume)

• 75.36 cubic feet

• 120.56 cubic feet

• 100.48 cubic feet

• 50.24 cubic feet

A circular rug has a diameter of 10 feet. How many feet is the radius of the rug?

• 3 feet

• 5 feet

• 7 feet

• 10 feet