document.write( "Question 213832This question is from textbook Intoductery Algebra
\n" ); document.write( ": Please help me solve for the indicated letter:\r
\n" ); document.write( "\n" ); document.write( "for r
\n" ); document.write( "s=1/3(pie)hr^2+4(pie)rh \r
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Algebra.Com's Answer #161626 by Alan3354(69443) $\"\"$ $\"About$

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s=1/3(pie)hr^2+4(pie)rh
\n" ); document.write( "It's pi, the Greek letter, not pie, the dessert.
\n" ); document.write( " $\"s=%28pi%2Ahr%5E2%29%2F3%2B4pi%2Arh+\"$
\n" ); document.write( " $\"r%5E2%2A%28h%2Api%2F3%29+%2B+r%2A4%2Api%2Ah+-+s+=+0\"$
\n" ); document.write( " $\"r%5E2+%2B+12r+-+3s%2F%28pi%2Ah%29+=+0\"$
\n" ); document.write( "-------------------
\n" ); document.write( "Use the quadratic formula
\n" ); document.write( " $\"r+=+-6+%2B+sqrt%2836+%2B+3s%2F%28pi%2Ah%29%29\"$
\n" ); document.write( "----------------------
\n" ); document.write( " $\"r+=+-6+-+sqrt%2836+%2B+3s%2F%28pi%2Ah%29%29\"$ If s is >0 this will give a negative value for r, so ignore it.\r
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