Shapes!

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Across
  1. 1. This shape has the same name as something in the sky at night
  2. 4. This is a 3d triangle. It is also something very famous in Egypt
  3. 7. This shape only has 1 side
  4. 10. This shape has 3 sides
  5. 11. This shape has 3 more sides than a triangle
  6. 12. A 3d version of a square
Down
  1. 1. This shape has 1 more side than a triangle
  2. 2. This is a 'long' square
  3. 3. the shape of a football
  4. 5. This shape has 2x the sides of a square
  5. 6. This shape has 5 sides
  6. 8. This is a flatter circle
  7. 9. this is like a square that is falling over