The area of a rhombus is its altitude is 9.6cm.find the perimeter of the rhombus?

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  1. the base is 139.2/9.6 = 14.5

    since all sides are the same, the perimeter is 4*14.5 = 58

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  2. we know that
    perimeter of rhombus=area / altitude
    perimeter = 4a

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