Question

1.Using Euler's formula find the unknown:

1.)F = 5, V = ?, E = 9

2.)F = 20, V = 12, E = ?​

Answer 1

Step-by-step explanation:

Eular's formula = F + V - E = 2

1. 5 + V - 9 = 2

V - 4 = 2

V = 6

2. 20 + 12 - E = 2

32 - E = 2

30 = E