Question

Luna bought a pepperoni pizza that was served on a metal tray. On the back of the tray, small letters stated that it has an area of 66.4424 square inches. What is the tray's circumference?

Use 3.14 for ​. If necessary, round your answer to the nearest hundredth.

Answer 1

To find the circumference of the tray, we need to determine the radius of the circle first. We can use the formula for the area of a circle, A = πr², and solve for r.

66.4424 = πr²

r² = 66.4424 / π

r ≈ 4.08 inches (rounded to two decimal places)

Now that we know the radius is approximately 4.08 inches, we can find the circumference of the tray using the formula C = 2πr.

C = 2π(4.08) ≈ 25.67 inches

Therefore, the tray's circumference is approximately 25.67 inches.

Explanation: