Question

A circular garden has a diameter of 10 inches. You want to cover the entire surface with mulch. Which of the following expressions correctly represents the area you need to cover, and what is the correct area?
Group of answer choices

π × 52 = 25π in2

π × 2 × 5 = 10π in2

π × 10 = 10π in2

π × 102 = 100π in2

Answer 1

Area of a circle = πr^2. With diameter 10 in, r = 5 in, so area = π·5^2 = 25π in^2 ≈ 78.54 in^2.

So the correct choice is: π × 5^2 = 25π in^2.