Class VIII

How many number of vertices does a cone has?
  1. 1
  2. 2
  3. 3
  4. None of these
If F, E and V represent the faces, edges and vertices respectively of a polyhedral then which of the following is the Euler�s formula?
  1. F - V + E = 2
  2. F + V + E = 2
  3. F + V - E = 2
  4. F + V =2 - E
How many number of faces does a solid sphere has?
  1. 1
  2. 2
  3. many
  4. none
If the base of a prism is a polygon of �n� sides, then which of the following is the number of faces of the prism?
  1. n+2
  2. n+1
  3. n
  4. n-1
Which of the following is the other name of a cube?
  1. A tetrahedron
  2. A regular hexahedron
  3. A square antiprism
  4. A cuboctanedron
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