Triangles!

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Across
  1. 3. assume this to be false in an indirect proof
  2. 5. intersection of medians
  3. 7. vertex connected to midpoint of opposite side
  4. 9. intersection of perpendicular bisectors
  5. 10. intersection of angle bisectors
  6. 11. incenter is equidistant from the ______ of the triangle
Down
  1. 1. vertex connected to opposite side at right angle
  2. 2. theorem that says longer side is opposite larger angle if the two sides are congruent
  3. 4. intersection of altitudes
  4. 6. centroid divides median into two segments with one _____ as long as the other
  5. 8. circumcenter is equidistant from the _____ of the triangle