Vocabulary over Triangles

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Across
  1. 2. Lines that intersect in a single point
  2. 3. In a right triangle it is the side opposite the right angle and it is the longest
  3. 5. A segment connecting the midpoints of two sides of a specific triangle
  4. 9. No size, length, width, or height only location
  5. 10. An accepted statement of fact; considered true without proof
  6. 11. They have exactly the same three sides and angles
  7. 12. A line that extends from one vertex of a triangle perpendicular to the opposite side
  8. 14. A true statement that can be proven
  9. 15. The point of concurrency of the angle bisectors of a triangle
  10. 17. A line that splits an angle into two equal angles
  11. 18. The point of concurrency of the medians of a triangle
  12. 19. Sides that are in the same position in different planes
  13. 20. A method for proving the congruence or similarity of triangles concurrent
Down
  1. 1. The lines containing concurrent altitudes of a triangle
  2. 4. It is perpendicular to a side of a triangle and passes through its midpoint
  3. 6. The angle between two sides
  4. 7. The measure of each side and angle of each triangle corresponds to a side or angle of the other
  5. 8. The sides which shares the common/neighboring border to the right angle in a triangle
  6. 13. A segment whose endpoints are a vertex and the midpoint of the opposite side
  7. 16. The side between two angles