Question

1/v=2/S(1/a+1/b+1/c) where v is the volume and S is the surface area of a cuboid

Answer 1

hope this helps... :))

Answer 2

Answer

V= abc

S= 2(ab+bc+ca)

S/2 = ab+bc+ca

2/S = 1/ab+1/bc+1/ca

2/S = (a+b+c)/(abc)

2V = S(a+b+c)

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

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