Question

using euler formula find the f= 5 v= ? e = 9

Answer 1

f+v-e=2
5+v-9=2
-4+v=2
v=2+4

v=6

Answer 2

${\huge{\textbf{Solution}}}$

Given F = 5 , E = 9 , V = ?

F + V - E = 2

5 + V - 9 = 2

V - 4 = 2

V = 4 + 2

V = 6