GEOMETRY SYMBOL

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Across
  1. 3. ≅ (symbol name)
  2. 4. || (symbol name)
  3. 7. |x-y| (symbol name)
  4. 9. ~ (symbol name)
  5. 11. ∢ (symbol name)
  6. 12. grad (symbol name)
  7. 13. ĀB (symbol name)
  8. 14. ,, (symbol name)
Down
  1. 1. ∠ (symbol name)
  2. 2. ° (symbol name)
  3. 4. π (symbol name)
  4. 5. rad (symbol name)
  5. 6. Δ (symbol name)
  6. 8. ∟ (symbol name)
  7. 10. , (symbol name)