Question

a solid has 12 vertices and 30 edges. how many faces does it have? ​

Answer 1

Answer:

it has 20 faces

Step-by-step explanation:

vertices (v) = 12

edges (e) = 30

faces (f)= ?

Euler's Formula = f+v-e= 2

=f +12-30=2

: =f+12=2+30

=f+12=32

;; =f=32-12

=f=20

》Therefore faces =20