Goofy Ah Crossword

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Across
  1. 3. 3 or more lines that intersect at 1 pt
  2. 7. proof presented in paragraph form
  3. 10. line with circumcenter, orthocenter, and centroid
  4. 11. line from vertex to opposite side
  5. 12. point of concurrency for 3 altitudes of a triangle
  6. 13. the point of concurrency for 3 medians of a triangle
  7. 14. polygon where every vertex is on the circle
  8. 15. a simple figure made of shapes
Down
  1. 1. proof that uses boxes and arrows
  2. 2. point of concurrency by 3 angle bisectors
  3. 4. segments where endpoints are a vertex of the triangle and a midpoint of the opposite side
  4. 5. the opposite reciprocal of a #
  5. 6. the point of concurrency for 3 bisectors of a triangle
  6. 8. a region inside a circle bounded by two radii
  7. 9. distance along arc