Area of a Circle Answers

The diameter of a circle is 10 meters. What is the area of the circle? (Use 3.14 for and round to the nearest tenth.)

The circle has a diameter of 16 inches. What is the area of the circle, rounded to the nearest square inch?

The diameter of a circle is 8 inches. What is the area?

Elspeth knows that . What would she need to do to find the circumference?

Min knows that . What would she need to do to find the area?

What is the height of the shape formed by the sectors shown below?

Sarah only knows the diameter of a circle. What should she do to find the radius?

Geoffrey needs to find the circumference of a circle. Which process should he use?

Avery planned a circular garden and path as shown below. The radius of the garden is 4 feet and the path around the garden is 2 feet wide. What is the total area of the garden and path? (Use 3.14 for and round to the nearest tenth.)

Kylie drew a circle with a diameter of 8 cm. Paige drew a circle with a radius of 3 cm. Approximately how much larger is the area of Kylie’s circle than the area of Paige’s circle? Use 3.14 for and round to the nearest whole number.