Geometry Summer Crossword

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Across
  1. 2. An example used to prove that an if-then statement is false.
  2. 3. A line that intersects two or more coplanar lines in different points.
  3. 5. A segment whose endpoints lie on a circle.
  4. 6. A polygon that is both equiangular and equilateral.
  5. 7. A chord that contains the center of the circle.
  6. 9. A kind of reasoning in which the conclusion is based on several past observations.
  7. 11. A 10-sided polygon.
  8. 13. A 4-sided polygon.
  9. 14. The set of all points.
  10. 15. A statement that can be proved.
  11. 16. The set of points in a plane that are a given distance from a given point in the plane.
  12. 18. A statement that is accepted without proof.
Down
  1. 1. A triangle with all sides congruent.
  2. 2. Circles that lie in the same plane and have the same center.
  3. 4. The perpendicular segment from a vertex to the line containing the opposite side.
  4. 8. Two angles whose sides form two pairs of opposite rays.
  5. 10. A line that contains a chord.
  6. 12. Two angles in a plane that have a common vertex and a common side but no common interior points.
  7. 17. Proving statements by reasoning from accepted postulates, definitions, theorems, and given information.
  8. 19. A figure formed by two rays that have the same endpoint.