the dimension of cuboid are in the ratio of 3 is to 4 is to 5 and total surface area is 3254 CM square find the all dimension of the cuboid
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let 3:4:5 be 3x,4x,5x
SA of cuboid is = 2(lb+bh+hl)
so,2(3x × 4x + 4x × 5x + 5x × 3x)
2(47x)=3254
x=3254/94
x=34.617
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