Respuesta :

Hrishii

Answer:

Faces = 12

Step-by-step explanation:

  • Given: V = 20, E = 30

  • To find: F

  • Euler's formula is given as:

  • F + V - E = 2

  • Plugging the values of V and E in the above formula, we find:

  • F + 20 - 30 = 2

  • -> F - 10 = 2

  • -> F = 2 + 10

  • -> F = 12