geometry crossword

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Across
  1. 3. direction of a line
  2. 8. all sides equal
  3. 11. middle point of a segment
  4. 13. 2 dimensional closed shape with straight sides
  5. 15. directional plane
  6. 17. polygon having 8 sides and 8 angles
  7. 18. lines that intersect and form a 90 degree angle
Down
  1. 1. 2 sides of equal length
  2. 2. regular equilaterial with 4 sides and 4 equal angles
  3. 4. dont cross
  4. 5. 6 sided polygon
  5. 6. divide into 2 equal parts
  6. 7. closed 2 dimensional shape with 3 sides
  7. 9. enlarge or shrink
  8. 10. all 3 sides are different lengths
  9. 12. identical in shape and size
  10. 14. angles that are opposite to eachother when 2 lines intersect
  11. 16. flip over an axis
  12. 19. pair of adjacent angles formed when2 lines intersect