document.write( "Question 100031This question is from textbook
\n" ); document.write( ": The Surface Area of a Sphere is 86pie ft squared. What is the diameter of th sphere? \n" ); document.write( "

Algebra.Com's Answer #72938 by elima(1433) $\"\"$ $\"About$

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$\"SA=4%28pi%29r%5E2\"$
\n" ); document.write( " $\"86%28pi%29ft%5E2=4%28pi%29r%5E2\"$
\n" ); document.write( "divide each side by $\"%28pi%29\"$ , then the $\"%28pi%29\"$ cancels;
\n" ); document.write( " $\"86ft%5E2=4r%5E2\"$
\n" ); document.write( "divide each side by 4;
\n" ); document.write( " $\"86%2F4=r%5E2\"$
\n" ); document.write( " $\"21.5=r%5E2\"$
\n" ); document.write( " $\"sqrt%2821.5%29=sqrt%28r%5E2%29\"$
\n" ); document.write( "4.64=r
\n" ); document.write( "diameter = 2(4.64)=9.28
\n" ); document.write( ":) \n" ); document.write( "

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