Chapter 5 Vocabulary: Relationships within Triangles

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Across
  1. 2. involves placing geometric figures in a coordinate proof
  2. 3. the point of concurrency of the three angle bisectors of a triangle
  3. 5. when you start by making the temporary assumption that the desired conclusion is false
  4. 7. a segment that connects the midpoints of two sides of a triangle
  5. 9. the point of intersection of the lines, rays, or segments
Down
  1. 1. a segment,ray,line, or plane that is perpendicular to a segment at its midpoint
  2. 2. the point of concurrency that is inside the triangle
  3. 4. the point at which the lines containing the three altitudes of a triangle intersects
  4. 6. the perpendicular segment from a vertex to the opposite side or to the line that contains the opposite side
  5. 8. a segment from a vertex to the midpoint of the opposite side
  6. 10. the point of concurrency of the three perpendicular bisectors of a triangle
  7. 11. when three or more lines, rays, or segments intersect in the same point
  8. 12. a point that is the same distance from each figure