Question

Find the length of the radius of a sphere with a surface area of 314.16 ft².

Answer 1

Recall that the area of a circle is:
\[A=\pi r^2\]So, we'll plug in 314.16 ft^2 for the area and solve for r:
\[314.16 ft^2 = \pi r^2\]
\[100 ft^2 = r^2\]
\[r=\sqrt{100 ft^2}=?\]

Answer 2

r=10?

Answer 3

Yep, 10 ft.

Answer 4

step by step answers posted here

http://www.mathskey.com/question2answer/4145/find-the-length-of-the-radius-of-a-sphere-with-surface-area-of



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