Vocabulary lessons 31 - 40

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