Question

If Faces = 20 , Edges = 30 then Vertices = ?​

Answer 1

by the eular's formula : -

Faces + Vertices = Edges + 2

but the real equation is

Faces + Vertices - 2 = Edges

THEREFORE , 20 + 30 - 2 = x

50 - 2 = x

48 = x

VERTICES = 48 IS ANS