Geometry Crossword Puzzle

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Across
  1. 4. A conditional statement
  2. 6. A line with 2 endpoints
  3. 7. A geometric truth
  4. 8. The intersection of 3 altitudes drawn from vertices to other sides
  5. 10. The point where 3 bisectors of a triangle intersect
  6. 12. A quadrilateral with 2 pairs of parallel sides
  7. 14. An angle that is less than 90 degrees
  8. 15. The measure of the outside of a circle
  9. 18. 90 Degrees
  10. 20. The exact same
Down
  1. 1. A shape with 4 sides
  2. 2. The middle point of a line
  3. 3. A line that extends in both directions forever
  4. 5. pair Supplementary angles
  5. 9. A line that extends forever in one direction
  6. 11. The length of the outside of a figure
  7. 13. A type of quadrilateral
  8. 16. A conditional statement switched
  9. 17. A shape with 9 sides
  10. 19. The measure inside of a closed figure