Question

prove that Euler's formula F +V -E =2​

Answer 1

Answer:

apply to polyhedron understood

hope it helped you

Answer 2

Answer:

V - E + F = 2

where

V = number of vertices

E = number of edges

F = number of faces

Tetrahedron

V = 4

E = 6

F = 4

4 - 6 + 4 = 2

Cube

V = 8

E = 12

F = 6

8 - 12 + 6 = 2

Octahedron

V = 6

E = 12

F = 8

6 - 12 + 8 = 2

Dodecahedron

V = 20

E = 30

F = 12

20 - 30 + 12 = 2

Icosahedron

V = 12

E = 30

F = 20

12 - 30 + 20 = 2

Buckyball

V = 60

E = 90

F = 32 (12 pentagons + 20 hexagons)

60 - 90 + 32 = 2