Question

using Euler's formula, find the number of edges if number of faces is 20 and vertices is 12 ?​

Answer 1

Answer:

Euler's formula says F+E=V+2

We know faces 20 and vertices 12

se edges will be

20+E=12+2

20+E=14

E=14-20

E=-6

It means 6

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Answer 2

We have ,

Euler’s formula for any polyhedron is, F + V – E = 2

Given , F = 12 , V = 20

Where, face (F) = 12, Vertex (V) = 20, Edge (E) =?

Then ,

12 + 20 - E = 2

32 - E = 2

32 - 2 = E

Edges = 30