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The perimeter of the base of a cylinder is as same as the perimeter of a square whose one side is 11 cm. If the volume is 98π cm3, the height of the cylinder will be :

  • maths -

    perimeter of square = 4(11) = 44

    let the radius of the cylinder be r

    2πr = 44
    r = 22/π

    vol of cyl = πr^2 h

    π(484/π^2)(h) = 98π
    484h/π = 98π
    h = 98π^2/484 = appr 7.74

    check my arithmetic

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