Question

if V is the volume and S is the surface area of cuboid with dimensions a*b*c,prove that2/S(1/a+1/b+1/c)=1/V

Answer 1

Answer:

Step-by-step explanation:

abc=V

ab=V/c........1

bc=V/a........2

ac= V/b........3

S=2(ab+bc+ac)

S/2=ab+bc+ac

From 1,2,3

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

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