document.write( "Question 272188: A farmer has two grain silos, both shaped like right circular cylinder, with dimensions shown in the diagrams below.
\n" ); document.write( "SILO A ^30 ft (height) SILO B ^30 ft(height)\r
\n" ); document.write( "\n" ); document.write( "<12 ft> (width of base) <30 ft>(width of base)\r
\n" ); document.write( "\n" ); document.write( "The farmer has the same amount of grain stored in each silo. Silo A is filled to the top. What is the height, in feet, of the level of the grain in Silo B? explain how you arrived at your answer.
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Algebra.Com's Answer #199173 by oberobic(2304)\"\" \"About 
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Silo A
\n" ); document.write( "volume = pi*r^2*30
\n" ); document.write( "diameter = 12, so
\n" ); document.write( "r = 1/2d = 6
\n" ); document.write( "volume = pi*36*30 = 3392.92
\n" ); document.write( "it is full to the top, so that is volume of grain.
\n" ); document.write( ".
\n" ); document.write( "Silo B
\n" ); document.write( "has the same amount of grain in it, so it has 3392.92 cubic ft
\n" ); document.write( "base diameter = 30
\n" ); document.write( "substituting the known volume
\n" ); document.write( "3392.92 = pi*15^2*h, where 'h' is the height of the seed in Silo B
\n" ); document.write( "h = 3392.92/(pi*15^2)
\n" ); document.write( "h = 4.8 ft
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