Question

if vertex is 20 and edges is 30 find the faces​

Answer 1

Step-by-step explanation:

We know that

E +2 = F + V ( Euler's formula)

So,

30 +2 = 12 + V

V = 32 - 12

V = 20.

Hope this may help you

mark me as Brainliest

Answer 2

Step-by-step explanation:

( Faces + Vertices ) - Edges = 2

Example

In a cube

12 edges

6 faces

8 vertices

Applying the rule

14 - 12 = 2

Applying the rule

(Faces + 20) - 30 = 2

Faces + 20 = 32

faces = 12

hope you like the answer and be my follower for more answers

#BeBrainly