document.write( "Question 107642: I have a cylinder 48\" tall & 30\" in diameter. How many gallons will it hold? \n" ); document.write( "
Algebra.Com's Answer #78404 by jim_thompson5910(35256)\"\" \"About 
You can put this solution on YOUR website!
Remember, if the diameter is 30, then the radius is 15\r
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\n" ); document.write( "\n" ); document.write( "The volume of a cylinder can be found by the formula
\n" ); document.write( "\"V+=+pi%2AR%5E2%2AH\"\r
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\n" ); document.write( "\n" ); document.write( "Now plug in \"R=15\" and \"H=48\"\r
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\n" ); document.write( "\n" ); document.write( "V = \"pi%2A15%5E2%2A48+=+33929.20062\"\r
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\n" ); document.write( "\n" ); document.write( "Edit: Now divide that result by 231 to convert from cubic inches to gallons to get \"33929.20062%2F231+=+146.87\". So the tank can approximately hold 147 gallons (after rounding). Note: 1 gallon = 231 cubic inches.
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