If V is the volume of a cuboid of dimensions l, -Maths 9th

If V is the volume of a cuboid of dimensions l, -Maths 9th
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Answer :

V = lbh and S = 2(lb + bh + hl) Now RHS = 2/S(1/l + 1/b + 1/h) = 2/S(bh + hl + lb/lbh) = 2/S x S/2 x 1/V = 1/V = LHS.
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Two cubes of side 2 cm each are joined end to end. Find the volume of the cuboid so formed. -Maths 9th

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