Check whether a polyhedron can have V = 12, E = 6 and F = 8.
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Solution
By using Euler's formula for polyhedron, F + V - E = 2 [where, F = faces, V = vertices, E = edges] ⇒ 8 + 12 - 6 = 2 ⇒ 20 - 6 = 2 ⇒ 14 ≠ 2 ∴ Given values do not satisfy the Euler's formula. Its mean this type of polyhedron cannot be possible.