Answer
S$\approx$1,256.6 ft$^2$
Work Step by Step
S=4$\pi$(10$^2$)
S=400$\pi$
S$\approx$1,256.6
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.