Geometry Symbol

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Across
  1. 1. to, ≅
  2. 3.
  3. 6. ||
  4. 7.
  5. 8. angle, ∟
  6. 9. constant, π
  7. 10. =2π rad), rad
  8. 11. AB →
  9. 14. ~
Down
  1. 2. g
  2. 4.
  3. 5. deg
  4. 11. (360° =2π c), C
  5. 12. product, 〈x, y〉
  6. 13. |x-y|