Geometry Crossword - Caroline Decker

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Across
  1. 5. A 5-sided polygon.
  2. 9. A quadrilateral with four right angles.
  3. 11. A 4-sided polygon.
  4. 12. A chord that contains the center of the circle.
  5. 14. An 8-sided polygon.
  6. 15. Two angles that whose measure have the sum of 90.
  7. 16. The set of all points.
  8. 17. The point that divides the segment into two congruent segments.
  9. 19. A quadrilateral with both pairs of opposite sides parallel.
  10. 20. A 10-sided polygon.
Down
  1. 1. The set of points in a plane that are a given distance (radius) from a given point (center) in the plane.
  2. 2. Figure formed by three segments joining three noncollinear points.
  3. 3. A line that intersects two or more coplanar lines in different points.
  4. 4. A quadrilateral with four right angles and four congruent sides.
  5. 6. A statement that contains the words "if and only if."
  6. 7. A segment whose endpoints lie on a circle.
  7. 8. A line that contains a chord.
  8. 10. A segment joining two non-consecutive vertices of a polygon.
  9. 13. A quadrilateral with four congruent sides.
  10. 18. A statement that can be proved.