Geometry Crossword Puzzle

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Across
  1. 3. extend forever in both directions
  2. 6. Lines that form a right angle
  3. 9. tool used to measure angles
  4. 11. True rays sharing a common endpoint
  5. 12. a straight path with no endpoints
  6. 13. unit used to measure angles
  7. 14. Endpoint of a side of the polygon
  8. 15. an angle that equals 90 degrees
  9. 16. lines that never meet
Down
  1. 1. lines that cross at a point
  2. 2. A flat surface extends forever
  3. 4. Extends in one direction without curve
  4. 5. the point halfway between two endpoints
  5. 7. Part of a line with two endpoints
  6. 8. has one endpoint and extends forever in one direction
  7. 10. tool used to measure length