geometry crossword puzzle

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Across
  1. 2. a continuous extent of length
  2. 4. a polygon having eight angles and eight sides
  3. 8. a position in space
  4. 12. an angle less than 90 degrees but greater than 0 degrees
  5. 13. line segments that do not intersect
  6. 17. a polygon with four sides
  7. 18. a polygon with 5 sides and 5 angle
  8. 19. one part of a line
  9. 20. polygon having six sides and six angles
Down
  1. 1. the intersection point of two sides of a plane figure
  2. 3. a triangle which has two sides equal
  3. 5. a triangle with all sides equal and all angles equal
  4. 6. a parallelogram having four right angles
  5. 7. a quadrilateral having both pairs of opposite sides parallel to each other
  6. 9. an angle greater than 90 degrees but less than 180 degrees
  7. 10. a triangle having three unequal sides and angles
  8. 11. four 90 degree angles
  9. 14. a quadrilateral plane figure having two parallel and two nonparallel sides
  10. 15. a 90 degree angle
  11. 16. an equilateral parallelogram having oblique angles