Geometry

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Across
  1. 5. a triangle with two congruent sides
  2. 8. polygon with three sides
  3. 10. polygon with six sides
  4. 13. two lines that intersect to form right angles
  5. 14. polygon with five sides
  6. 18. tool used to measure angles
  7. 21. a set of points with one endpoint
  8. 22. two lines that will never intersect
  9. 23. polygon with nine sides
Down
  1. 1. less than 90 degrees
  2. 2. a set of points that go on forever
  3. 3. polygon with eight sides
  4. 4. unit used to measure angles
  5. 6. a triangle with three congruent sides
  6. 7. polygon with four sides
  7. 9. a triangle with no congruent sides
  8. 11. more than 90 degrees
  9. 12. polygon with ten sides
  10. 15. angles across from each other
  11. 16. angle measures exactly 180 degrees
  12. 17. polygon with twelve sides
  13. 19. the common endpoint of two angles
  14. 20. two angles that share a common side