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March 30, 2017

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Find the slant height of a cone with surface area of 178.6 in2 and a radius of the base of 4.9 in

  • geometry - ,

    a = pi r s
    178.6 = 3.14 * 4.9 * s
    s = 11.6

    or, if you are including the base of the cone,

    a = pi*r(r+s)
    178.6 = 3.14 * 4.9 (4.9+s)
    s = 6.71

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