Question

The diameter of a sphere measures 10.4 inches. What is the surface area of the sphere?A 216.32pi in²B. 108.16pi in²C. 54.08pi in²D. 432.64pi in²

Answer 1

108.16pi in^

Explanation:

Answer 2

Step 1

Given; The diameter of a sphere measures 10.4 inches. What is the surface area of the sphere?

A 216.32pi in²

B. 108.16pi in²

C. 54.08pi in²

D. 432.64pi in²

Step 2

The surface area of a sphere is given as;

`A=4\pi r^2`
`r=(diameter)/(2)=(10.4)/(2)=5.2`
`\begin{gathered} A=4\pi*(5.2)^2 \\ A=4*\:27.04\pi \\ A=108.16\pi in^2 \\ \end{gathered}`

Answer; Option B

`A=108.16\pi in^2`