Geometry

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Across
  1. 4. a polygon with parallel lines
  2. 7. 2pairs of equal sides 4right angles
  3. 8. measures angles
  4. 9. a polygon with 9 sides
  5. 11. a polygon with 3 sides
  6. 12. sides are curved and not straight
Down
  1. 1. no vertices no straight lines
  2. 2. a polygon with 5 sides
  3. 3. a polygon with 7 sides
  4. 5. a polygon with 4 sides
  5. 6. a polygon with 6 sides
  6. 10. a polygon with 8 sides