The length, breadth and height of a cuboid are in t he ratio 7:6:5. If the volume of the cuboid is 5670 cm3. find the surface area of the cuboid.
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L= 7x, B= 6x, H= 5x
V=l*b*h-------->5670/7*6*5------->27=x^3----->x=3
L=21cm, B=18cm, H=15cm
Surface Area=2(21*18 + 21*15 + 15*18)
=2(378 + 315 + 270)---------->1926cm^2
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