Equation Icon  V~ ---------( gf gf ) Area(S)- -1-- ( ab)2 -1-- ( ab)2 EH (S) = 16pG2 1 - 16p kabq dS + 16p xabq dS > V~ ---------( gf S ) S Area(S)- -1-- ( ab)2 > 16pG2 1 - 16p kabq dS = V~ -------- gf S --1- Area(S)- ( S ( ab)2) = 16p 16pG2 2 R - kabq dS =: EG (S) . (41) S