Polyhedra - Group 3, Week 8

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Across
  1. 1. Pentagonal faces.
  2. 4. Prisms are named by the shape of their?
  3. 6. How many regular polyhedrons are there?
  4. 8. How many edges does a Icosahedron have?
  5. 9. The point of intersection of two edges.
  6. 10. How many faces does a cube have?
  7. 13. Identical in form describes what?
Down
  1. 2. 12 edges and triangular faces.
  2. 3. Who's formula is V-E+F=2.
  3. 5. The flat surface of a shape.
  4. 7. The lateral surfaces are triangles that meet at a common vertex.
  5. 8. What regular Polyhedron has an internal angle sum of 180?
  6. 11. Line segments where two faces meet.
  7. 12. 6 faces, 8 vertices and 12 edges.