Geometry Crossword

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Across
  1. 4. One dimensional, goes on forever
  2. 5. Three points on the same plane
  3. 7. Three geometry words, no formal definition
  4. 10. Two rays that share an endpoint
  5. 12. What determines the end of a line
Down
  1. 1. Terms with a formal definition
  2. 2. Three points on the same line
  3. 3. A line that doesn't go on forever
  4. 6. A location on a plane or line represented by a dot
  5. 8. The point where lines or planes meet
  6. 9. A line with one end
  7. 11. Two dimensional, has three points