Vocabulary 31-40

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Across
  1. 3. of a triangle the point of concurrency of the three angle bisectors of a triangle.
  2. 4. a segment whose endpoints are a vertex of the triangle and the midpoint of the opposite side.
  3. 6. the point of concurrency of three mediansofatriangle Also known as the center of gravity.
  4. 10. of a circle- a region inside a circle bounded by two radii of the circle and their intercepted arcs.
  5. 11. three or more lines that intersect at one point.
  6. 12. a style of proof that uses boxes and arrows to show the structure of the proof.
  7. 14. the distance along an arc measured in linear units.
  8. 15. a circle that contains all vertices of a polygon.
Down
  1. 1. the line containing the circumcenter, centroid, and orthocenter of a triangle.
  2. 2. the point of currency of the three perpendicular bisectors of a triangle.
  3. 5. the point of currency of the three altitudes of a triangle.
  4. 7. the perpendicular segment from the vertex to the line containing the opposite side.
  5. 8. the opposite of the reciprocal of a number.
  6. 9. a point where three or more lines intersect.
  7. 13. a style of proof in which the statements and reasons are presented in paragraph form.