Math Crossword

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Across
  1. 1. Segment whose endpoints are a vertex and the midpoint of the opposite side
  2. 2. Perpendicular segment from a vertex to the line containing the opposite side
  3. 4. Point of concurrency of the medians
  4. 7. Three or more lines that intersect at one point
  5. 10. Point at which concurrent lines intersect
  6. 11. Circle that has the circumcenter as its center
  7. 12. The length of the perpendicular segment from the point to the line
Down
  1. 1. A segment connecting the midpoints of two sides
  2. 3. Point of concurrency of the altitudes
  3. 5. Point of concurrency of the angle bisectors
  4. 6. Point of concurrency of the perpendicular bisectors
  5. 8. Proof using coordinate geometry and algebra
  6. 9. Circle that has the incenter as its center