Geometry

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The surface areas of two similar figures are given. The volume of the largwe figure is given. Find the volume of the smaller figure if the SA= 25 cm SA= 36cm and the V= 216cm?

  • Geometry -

    I assume SA is surface area and is in cm^2
    I assume V is volume and is in cm^3
    SA proportional to length squared
    Volume proportional to length cubed

    length1^2/length2^2 = 25/36
    so
    length1/length 2 = sqrt(25/36) = .83333
    so
    length1^3/length2^3 = .83333^3 = .5787
    so
    V1 = .5787 V2 = 125 cm^3

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