document.write( "Question 1016717: a water tank ,open at top is hemispherical at the bottom and cylindrical above it.radius is 12
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\n" ); document.write( "and the capacity is 3312 pie meter cube
\n" ); document.write( "ratio of surface areas of spherical and cylindrical portions..
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Algebra.Com's Answer #633139 by ankor@dixie-net.com(22740)\"\" \"About 
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A water tank, open at top, is hemispherical at the bottom and cylindrical above it.
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\n" ); document.write( "Find the ratio of the surface areas of the spherical and cylindrical portions.
\n" ); document.write( "\"%282%2Api%2Ar%5E2%29%2F%282%2Api%2Ar%2Ah%29\" = \"r%2Fh\"; canceled \"2%2Api%2Ar\"
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\n" ); document.write( "r = 12; Find h of the cylinder portion
\n" ); document.write( "V = Hemisphere vol + cylinder vol:
\n" ); document.write( "\"2%2F3\"\"pi%2A12%5E3\" + \"pi%2A12%5E2%2Ah\" = \"3312%2Api\"
\n" ); document.write( "divide thru by pi; do the math
\n" ); document.write( "\"2%2F3\"*1728 + 144h = 3312
\n" ); document.write( "1152 + 144h = 3312
\n" ); document.write( "144h = 3312 - 1152
\n" ); document.write( "144h = 2160
\n" ); document.write( "h = 2160/144
\n" ); document.write( "h = 15 meters high
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\n" ); document.write( "The surface area ratio: \"r%2Fh\" = \"12%2F15\" = \"4%2F5\"
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