geometry crossword

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Across
  1. 5. they are less than 90°
  2. 7. a piece or part of a line having two points
  3. 9. it is 180 degrees
  4. 11. more than 90 degrees
Down
  1. 1. intersecting lines with four right angles
  2. 2. lines that never meet
  3. 3. line that pass through each other
  4. 4. a long, narrow mark or band
  5. 6. a spot
  6. 8. they are 90 degrees
  7. 10. any of a set of straight lines passing through one point.