Geometry Vocabulary

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Across
  1. 3. a polygon with 10 sides
  2. 4. a polygon with 9 sides
  3. 6. two angles whose sum is 180 degrees
  4. 8. a parallelogram with four congruent sides
  5. 10. same size and same shape
  6. 11. angle that is exactly 180 degrees
  7. 13. angle that is less than 90 degrees
  8. 14. a quadrilateral with exactly one pair of parallel sides
  9. 15. triangle with 3 congruent sides
  10. 16. a quadrilateral with opposite sides that are parallel and congruent
  11. 18. a polygon with 7 sides
  12. 20. angles that are across from each other and congruent
  13. 21. angle that is greater than 90 degrees and less than 180 degrees
  14. 24. two angles whose sum is 90 degrees
Down
  1. 1. angles that share a side and a vertex
  2. 2. closed figure with 3 or more sides
  3. 5. a polygon with 4 sides
  4. 7. a polygon with 3 sides
  5. 9. triangle with no congruent sides
  6. 11. a parallelogram with four congruent sides and four right angles
  7. 12. a polygon with 8 sides
  8. 16. a polygon with 5 sides
  9. 17. a polygon with 6 sides
  10. 19. triangle with at least 2 congruent sides
  11. 22. angle that is exactly 90 degrees
  12. 23. a parallelogram with four right angles