Relationships in Triangles

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Across
  1. 1. _______ bisector divides an angle into two equal parts
  2. 4. the exact middle point of a segment
  3. 8. the points at which three altitudes intersect
  4. 9. the points of a triangle
  5. 10. the point at which three medians intersect
  6. 12. the point at which three perpendicular bisectors intersect
  7. 13. joins the midpoints of two sides
Down
  1. 1. connects a vertex to the opposite side so that it is perpendicular to the side
  2. 2. _______ theorem is used to find a missing side of a right triangle
  3. 3. the measure around a figure
  4. 5. the point at which three angle bisectors intersect
  5. 6. ________ bisector divides a segment into two equal parts and is perpendicular to it
  6. 7. the longest side of a right triangle
  7. 11. connects a vertex to the midpoint of the opposite side