Question

A softball has a diameter of 3.82 inches. How many square inches of material is necessary to cover a softball? Use 3.14 for π

Answer 1

45.82 square inches

Explanation:

Use the formula for the surface area of a sphere, A = 4
`\pi`r²

If the diameter is 3.82 inches, the radius is 1.91 inches.

Plug in 3.14 as
`\pi` and 1.91 as r, and solve:

A = 4
`\pi`r²

A = 4(3.14)(1.91²)

A = 45.82

So, approximately 45.82 square inches of material are needed.