Geometry crossword puzzle(line/segment/ray)

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Across
  1. 2. a_______is a part of a line
  2. 6. the absolute value of the difference of two coordinates on a line.
  3. 7. measure greater than 90 degrees and less than 180
  4. 10. a rule that is accepted without proof.
Down
  1. 1. measure greater than 0 degrees and less than 90
  2. 3. measure 90 degrees
  3. 4. a___starts at one point and goes in one direction forever
  4. 5. a_____has no dimensions
  5. 8. a____has one dimension
  6. 9. measure 180 degrees
  7. 10. a_____has two dimensions