<PRE><B>Question 970379</B>
Surface Area:


SA = 4*pi*r^2


64*pi = 4*pi*r^2


16 = r^2 ... divide both sides by 4pi


r^2 = 16


r = 4 ... take the square root of both sides. r &gt; 0


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Volume:


V = (4/3)*pi*r^3


V = (4/3)*pi*4^3


V = (4/3)*pi*64


V = (4/3)*64*pi


V = 256pi/3


So the exact volume, in terms of pi, is 256pi/3 cubic meters</PRE>