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A wooden ball 7 inches in radius sinks to a depth of 10 inches in a river. Find the exposed area of the ball above the water.

  • math -

    the area of a spherical cap of height h on a sphere of radius r is

    A = 2 pi R h
    = 2 pi * 7 * 4
    = 56 pi = 175.9 in^2

  • math -

    58 cm times 55.6. try to find the area for this problem

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