Points of concurrency

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Across
  1. 6. where altitudes intersect
  2. 8. line segment connecting two midpoints
  3. 9. pair of adjacent angles formed by intersecting lines that are supplementary
  4. 12. with two congruent sides
  5. 13. triangle with an obtuse angle
  6. 14. line that is perpendicular to a segment at its midpoint
  7. 15. line which cuts angle directly in half
  8. 17. triangle with angles less than 90 degrees
  9. 20. adds up to 180 degrees
  10. 21. equal distances
  11. 22. a natural ability to do something
  12. 23. where perpendicular bisectors intersect
  13. 24. where angle bisectors intersect
Down
  1. 1. trying to find your way around
  2. 2. 3 or more lines that intersect at a certain point
  3. 3. point of balance
  4. 4. opposite angles formed by intersecting lines
  5. 5. where medians intersect
  6. 7. triangle with no congruent sides
  7. 10. rocks that orbit the sun
  8. 11. point where concurrent lines intersect
  9. 16. middle of a line segment
  10. 18. a line segment joining a vertex to the midpoint of the opposite side
  11. 19. height