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math

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if the surface area of the sphere is 154 cm, find its volume.

  • math -

    SA of sphere = 4*pi*r^2
    154 = 4*3.14*r^2
    r = 3.502

    V of sphere = (4/3)*pi*r^3
    V = (4/3)*3.14*(3.502)^3
    V = 170.81 cm^3

    hope this helps~ :)

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