GEOMETRY SYMBOLS

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Across
  1. 3. Δ
  2. 4. infinite line
  3. 6.
  4. 7. line that start from point A
  5. 8. ~
  6. 11. |x-y|
  7. 13. grad
  8. 15.
Down
  1. 1.
  2. 2.
  3. 5. rad
  4. 9. Δ
  5. 10.
  6. 12. π
  7. 14. °