Geometry Crossword Puzzle

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Across
  1. 6. 2d figure with at least three sides and angles
  2. 7. Two lines that meet or intersect each other at right angles
  3. 9. Lying on the same plane
  4. 10. Line,line segment or ray that passes through the midpoint of another line segment
  5. 14. Statement that appears to be true but has not been formally proven
  6. 15. One or two points lying on the same line
Down
  1. 1. Line that splits an angle into two equal angles
  2. 2. Statement assumed to be true based on basic geometric principle's
  3. 3. Negating the terms of a conditional statement
  4. 4. Middle of a line segment
  5. 5. Process of finding the opposite of the given statement
  6. 8. Same size and shape
  7. 11. Reverse of a conditional statement
  8. 12. Point where two straight lines or rays meet
  9. 13. Statement that can be proved to be true based on on known and proved facts