GEOMETRY SYMBOLS

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Across
  1. 3. angle =90°
  2. 4. arcminute
  3. 9. perpendicular line(90°)
  4. 10. triangle shape
  5. 11. grads angle unit
  6. 14. line that start from point A
  7. 15. infinite line
Down
  1. 1. arcsecond
  2. 2. ~
  3. 5. rad
  4. 6. 1turn=360°
  5. 7. equivalence of geometric and shapes and size
  6. 8. parallel lines
  7. 12. distance between points x and y
  8. 13. formed by two rays