Question

3. Find the number of edges in a polyhedron
with 10 faces and 12 vertices.​

Answer 1

Answer:

As per question:

Euler's Formula is for any polyhedrons.

i.e. F + V - E = 2

Given, F = 10 and V = 12 and E = a

10 + 12 - a = 2

22 - a = 2

- a = 2 - 22

- a = - 20

a = 20

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