Question

If the V is the volume of a cuboid of dimensions a×b×c and S is its surface area then proove that V/1=2/5(1/a+1/b+1/c)

Answer 1

Volume of a cuboid(V) =abc

Surface area of a cuboid (S) =2(ab+bc+ca)

S/V=2(ab+bc+ac)/abc

S/V=2(1/a+1/b+1/c)

V/1=2/S(1/a+1/b+1/c)