SOLUTION: 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 wate
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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?
I am not sure how to solve this one since the water depth is at 4 feet.
Answer by scott8148(6628) (Show Source): 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
at 40 feet, the diameter is 12 feet ... at 4 feet, the diameter is 1.2 feet
radius is .6 so area is .36pi ft^2
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