document.write( "Question 930969: The inside of a cylindrical tank used to hold resin
\n" ); document.write( "must be coated with a corrosion preventative. The
\n" ); document.write( "tank measures 7 ft in diameter and 5 ft in height.
\n" ); document.write( "One gallon of corrosion preventative will cover
\n" ); document.write( "10 ft2. How many gallons will be needed to coat the
\n" ); document.write( "tank? Assume that the sides, top, and bottom of the
\n" ); document.write( "tank will be treated.
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Algebra.Com's Answer #565395 by Alan3354(69443)\"\" \"About 
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Find the area of the inside of the tank.
\n" ); document.write( "It's a cylinder + the top and the bottom.
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\n" ); document.write( "For a cylinder:
\n" ); document.write( "\"Area+=+2pi%2Ar%2Ah\"
\n" ); document.write( "For the ends:
\n" ); document.write( "\"Area+=+pi%2Ar%5E2\"
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