Geometry Symbols

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Across
  1. 4. arcminute, 1°=60'
  2. 6. grads angle unit
  3. 8. arc from point A to point B
  4. 10. line from point A to point B
  5. 11. |x-y|
  6. 13. ∡
  7. 14. line that start from point A
  8. 15. formed by two rays
Down
  1. 1. arcsecond, 1'=60°
  2. 2. ||
  3. 3. △
  4. 5. It has a value of 3.14159
  5. 7. same shapes, not same size
  6. 9. equivalence of geometric shapes and size
  7. 12. 1 turn=360°