document.write( "Question 100984: Question: A conical tank is 40 feet deep and the diameter of the top is 12 feet. If the tank is filled with water to a depth of 4 feet, what is the area of the surface of the water?\r
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Algebra.Com's Answer #73514 by scott8148(6628)\"\" \"About 
You can put this solution on YOUR website!
assuming it is an inverted cone (point down), the diameter of the water surface is proportional to the depth\r
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\n" ); document.write( "\n" ); document.write( "at 40 feet, the diameter is 12 feet ... at 4 feet, the diameter is 1.2 feet\r
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\n" ); document.write( "\n" ); document.write( "radius is .6 so area is .36pi ft^2
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