Question

using carler formula find the unknown , faces 7,5,20,verticas 6,7,12 edges 12,9,?​

Answer 1

using euler formula F+V-E=2

Step-by-step explanation:

SO here F=20 V=12 AND E=?

: using formula

20 + 12 - E = 2

32 - E = 2

E = 30