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    menania's Avatar
    menania Posts: 1, Reputation: 1
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    #1

    Sep 2, 2010, 05:14 PM
    What is the volume of a circular lake that is 1km wide and 10 meters deep?
    Estimate how much volume is in a circular lake that is 1km wide and 10 meters deep.
    smoothy's Avatar
    smoothy Posts: 25,490, Reputation: 2853
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    #2

    Sep 2, 2010, 05:21 PM

    How deep at the edges?
    ebaines's Avatar
    ebaines Posts: 12,131, Reputation: 1307
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    #3

    Sep 3, 2010, 04:49 AM

    First determine the area of the lake, then multiply that by it's average depth. Area of a circle is . Since D =10^3 m, and you can estimate that is "about" 3/4, so the area is around 0.75 x 10^6 m^2. Multiply that by the estimated depth of 10 m, and what do you get?

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