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geometry

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A spherical water tank has a diameter of 10 feet. How much water does it hold when half full (use 3.14 for , and round to the nearest hundredth)?

  • geometry - ,

    how will i get my answer

  • geometry - ,

    The volume of a sphere with radius r is (4/3)(pi*r^3). Use that.

  • geometry - ,

    volume = (4/3)pi(r^3)
    so the volume of the full tank = (4/3)pi(5^3
    = 523.59878
    so half of that volume is 261.79939

    to the nearest hundredth, 261.80

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