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Question

find the height and volume of a cuboid if its surface area is 758 cm2. And its length and breadth is 14 and 11 cm respectively.

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Solution

Let the height of the cuboid = hNow, length, l = 14 cmBreadth, b = 11 cmNow, TSA = 758 cm22lb+bh+hl = 75814×11 + 11h + 14h = 37925h = 225h = 9 cmNow, volume = lbh = 14 × 11 × 9 = 1386 cm3

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