Geometry Crossword Puzzle

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Across
  1. 5. The Intersection point of all the 3 interior angle bisectors of a triangle.
  2. 10. A line that passes through 2 lines in the same plane.
  3. 13. Something that makes up a shape or can be just straight.
  4. 15. <-----0----->.
  5. 18. It is outside of the shape.
  6. 19. A line with a single endpoint.
  7. 20. The inside of a shape.
Down
  1. 1. An example that opposes or contradicts a statement.
  2. 2. The distance around something.
  3. 3. A line that passes through 2 very specific points on a triangle.
  4. 4. A statement that can be proved to be true.
  5. 6. A Quadrilateral that has two parallel sides and two non parallel sides.
  6. 7. A four sided shape with four right angles.
  7. 8. A straight line that makes the right angle 90 degrees with the other line.
  8. 9. an angle of 90 degrees and has 2 perpendicular lines.
  9. 11. An angle Less than 90 degrees.
  10. 12. A six sided shape.
  11. 14. An exact position on a line.
  12. 16. A function that undoes the Function.
  13. 17. Two shapes that share the same shape.