Geometry

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Across
  1. 7. any side of a triangle
  2. 8. the set of points outside a polygon
  3. 10. three or more lines that intersect at one point
  4. 13. one of the two parallel sides of the trapezoid
  5. 16. a triangle with three congruent sides
  6. 17. a triangle with three congruent angles
  7. 19. the set of all points inside a polygon
  8. 20. every vertex of the polygon lies on the circle
  9. 22. a segment connecting two nonconsecutive vertices of a polygon
Down
  1. 1. a set of three nonzero whole numbers
  2. 2. a quadrilateral with exactly two pairs of congruent consecutive sides
  3. 3. one obtuse angle
  4. 4. a point where three or more lines coincide
  5. 5. a quadrilateral with four right angles
  6. 6. no congruent sides
  7. 9. a trapezoid in which the legs are congruent
  8. 10. a polygon in which no diagnol contains points in the exterior of the polygon
  9. 11. a line drawn in a figure to aid in a proof
  10. 12. a quadrilateral with two pairs of parallel sides
  11. 14. one right angle
  12. 15. one of a pair of consecutive angles whose common side is a base of the trapezoid
  13. 16. the same distance from two or more objects
  14. 18. a triangle with three acute angles
  15. 20. a polygon in which a diagnol can be drawn such that part of the diagnol contains points in the exterior of the polygon
  16. 21. a quadrilateral with four congruent sides