Basic Geometry Vocabulary

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Across
  1. 1. a line that cuts through (intersects) other lines
  2. 4. angles that add to 90 degrees
  3. 6. the unit for measuring angles
  4. 7. two lines that never cross
  5. 11. a device to measure angles
  6. 12. an 8 sided polygon
  7. 16. an angle that measures less than 90 degrees
  8. 17. all sides congruent
  9. 18. to go fromone side to the other
  10. 20. outside
  11. 21. an angle that measures exactly 90 degrees
  12. 23. angles that are across from each other when 2 lines intersect
  13. 24. a 3 sided polygon
Down
  1. 2. angles that add to 180 degrees
  2. 3. a 5 sided polygon
  3. 5. when shapes meet (interscet) to form a right angle
  4. 8. a 4 sided polygon
  5. 9. a triangle with no equal (congruent) sides
  6. 10. inside
  7. 13. an angle that measures more than 90 degrees
  8. 14. an angle that measures exactly 180 degrees
  9. 15. a 6 sided polygon
  10. 19. all sides and angles are equal
  11. 22. a 10 sided polygon
  12. 25. a triangle with 2 congruent sides