Find the surface area of a sphere whose diameter is 4.6 ft.

Answer 1

There is a formula for the surface area of a sphere which I'm sure is in your text book. You could have looked it up faster than the time it took to write out this question. The formula is:

Surface Area = 4·π·r²

where r is the radius of the sphere, which is equal to one-half of the diameter. Plug the radius into the formula to get the answer. The units are square feet.