Geometry Crossword

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Across
  1. 3. a parallelogram with four congruent sides
  2. 7. two angles whose sum is 180 degrees
  3. 11. a comparison of two numbers by division
  4. 12. the common endpoint of an angle
  5. 14. a four sided polygon
  6. 16. an angle less than 90 degrees but more than 0 degrees
  7. 17. angle an angle that measures 90 degrees
  8. 18. two objects having the same size and shape
  9. 20. a line that intersects a circle in two points
Down
  1. 1. a parallelogram with four congruent sides and four right angles
  2. 2. two angles whose sum is 90 degrees
  3. 4. a part of a line consisting of two endpoints and all points between them
  4. 5. coplanar lines that do not intersect
  5. 6. six sided polygon
  6. 8. a quadrilateral with both pairs of opposite sides parallel
  7. 9. a segment whose endpoints lie on a circle
  8. 10. figures that have the same shape but not necessarily the same size
  9. 13. five sided polygon
  10. 15. a triangle whose interior angles are all acute
  11. 17. a parallelogram with four right angles
  12. 19. a quadrilateral with exactly one pair of parallel sides