Question

Using Euler's formula, find the unknown.
Polyhedron. I. II. III
Faces -. 8 _. 10
Vertices-. _. 6. 12
Edges -. 12. 9. _​

Answer 1

Step-by-step explanation:

Euler's formula is V-E+F=2

1)So, V-12+8=2

V-20=8

V=20-8

V=18

2) 6-9+F=2

-3+F=2

F=2+3

F=5

3)12-E+10=2

E+2=2

E=0

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