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Check whether a polyhedron can have V = 12, E = 6 and F = 8. - Mathematics

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Question

Check whether a polyhedron can have V = 12, E = 6 and F = 8.

Sum

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. It mean this type of polyhedron cannot be possible.

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Chapter 6: Visualising Solid Shapes - Exercise [Page 198]

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NCERT Exemplar Mathematics [English] Class 8
Chapter 6 Visualising Solid Shapes
Exercise | Q 72. | Page 198

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