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Which of the following cannot be true for a polyhedron? - Mathematics

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Question

Which of the following cannot be true for a polyhedron?

Options

  • V = 4, F = 4, E = 6

  • V = 6, F = 8, E = 12

  • V = 20, F = 12, E = 30

  • V = 4, F = 6, E = 6

MCQ

Solution

V = 4, F = 6, E = 6

Explanation:

Euler's Formula for any polyhedron = F + V – E = 2

Where, F = Faces and V = Vertices and E = Edges

Given, F = 6, V = 4 and E = 6

L.H.S. = F + V – E

= 6 + 4 – 6

= 10 – 6 = 4 ≠ R.H.S.

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Chapter 6: Visualising Solid Shapes - Exercise [Page 185]

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NCERT Exemplar Mathematics [English] Class 8
Chapter 6 Visualising Solid Shapes
Exercise | Q 17. | Page 185

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