GEOMETRY

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Across
  1. 3. a flat surface that extends in all directions
  2. 4. an angle whose measure is greater than 90 degrees but less than 180 degrees
  3. 6. subset of a line extends only in one direction
  4. 7. an angle with a measure of exactly 180 degrees
  5. 8. lines that do not intersect
  6. 10. two rays with a common endpoint
  7. 11. tools use to measure segments
  8. 13. specific location in space with no size and shape
  9. 14. an angle whose measure is greater than 0 degrees but less than 90 degrees
Down
  1. 1. tool used to measure an angle
  2. 2. unit of measurement for angles
  3. 5. common endpoint of an angle
  4. 6. ang angle whose measure is exactly 90 degrees
  5. 9. subset of line that has two endpoints
  6. 12. a straight path