3D Shapes

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Across
  1. 3. only 3D shape without vertices
  2. 5. close to a cube
  3. 7. a ball has none of them
  4. 8. similar to a donut
  5. 11. similar to a pyramid
  6. 12. base of a tetrahedron
  7. 14. plural form of vertex
Down
  1. 1. a 3D shape with 20 faces
  2. 2. has 3 faces, 2 of them are circles
  3. 4. a cube has 6 of them
  4. 6. a 3D shape with 8 faces
  5. 9. approximately 3.14
  6. 10. another name for a 3D shape
  7. 11. has 6 same faces
  8. 13. located in Belgium
  9. 15. an empty ball