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21 June, 15:05

If a cylinder has a radius of 6 ft and a height of 12.2 ft, what is the surface area? Use 3.14 for p.

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  1. 21 June, 15:25
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    Okay, So Surface Area Formula:

    SA = (R²*3.14*2) + (D * 3.14 * H)

    So, Lets Solve.

    SA = 6² * 3.14 * 2 + 12 * 3.14 * 12.2

    So:

    SA = 36 * 3.14 * 2 + 37.68 * 12.2

    Next:

    SA = 72 * 3.14 + 459.696

    Next:

    SA = 226.08 + 459.696

    Final:

    SA = 685.776ft³
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