Polygon

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Across
  1. 1. divides the polygon into triangles
  2. 4. all sides and angles are the same
  3. 7. an eight sided polygon
  4. 9. angles on the outside of the polygon
  5. 12. at least one vertex points inward, giving it a "dented" look
  6. 14. a five sided polygon
  7. 15. a point where the sides meet
  8. 17. a ten sided polygon
  9. 18. a six sided polygon
  10. 20. some sides and angles are different
  11. 21. angles on the inside of the polygon
Down
  1. 2. another rule for polygons
  2. 3. a rule for polygons
  3. 5. between two vertices
  4. 6. a three sided polygon
  5. 8. no open sides, a rule for polygons
  6. 10. a four sided polygon
  7. 11. a nine sided polygon
  8. 13. all vertices point outward
  9. 16. a seven sided polygon
  10. 19. formed by two sides