Radius to Diameter: Real-Life Circle Challenges for 6th Graders

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

• 8 meters

• 15 meters

• 12 meters

• 10 meters

If a pizza has a radius of 10 inches, how wide is the pizza from one edge to the other?

• 20 inches

• 25 inches

• 15 inches

• 30 inches

A circular swimming pool has a radius of 7 feet. How far is it from the center of the pool to the edge?

• 10 feet

• 7 feet

• 3 feet

• 5 feet

The radius of a circular track is 15 meters. What is the diameter of the track?

• 30 meters

• 40 meters

• 35 meters

• 25 meters

A round table has a radius of 2 feet. How long is the table across?

• 4 feet

• 6 feet

• 2 feet

• 8 feet

If a bicycle wheel has a radius of 14 inches, what is the diameter of the wheel?

• 24 inches

• 30 inches

• 32 inches

• 28 inches

A circular fountain has a radius of 3 meters. How far is it from the center to the outer edge?

• 2 meters

• 5 meters

• 4 meters

• 3 meters

The radius of a hula hoop is 1.5 feet. What is the diameter of the hula hoop?

• 2 feet

• 4 feet

• 3 feet

• 1 foot

A circular pizza has a radius of 12 inches. How wide is the pizza when measured across?

• 24 inches

• 20 inches

• 30 inches

• 18 inches

If a circular pond has a radius of 8 meters, what is the distance from one side of the pond to the other?

• 16 meters

• 10 meters

• 12 meters

• 20 meters