VISUALISING SOLID SHAPES

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Across
  1. 4. Which of the following is the base of a tetrahedron?
  2. 5. Which of the following is the number of vertices of sphere?
  3. 6. Which of the following is a triangular pyramid having all the faces as equilateral triangle?
  4. 7. PRISM Which of the following can be other name of a cylinder?
  5. 8. How many number of vertices does a cone has?
Down
  1. 1. Which of the following is the other name of a cube?
  2. 2. 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?
  3. 3. How many number of faces does a solid sphere has?
  4. 4. How many number of faces does a hemisphere has?