GEOMETRY SYMBOL

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Across
  1. 1.
  2. 3. degree
  3. 6. ~
  4. 9. 1 turn=360⁰
  5. 12. |x-y|
  6. 13.
Down
  1. 2. angle =90⁰
  2. 4. π
  3. 5. ||
  4. 7. gons
  5. 8.
  6. 10. radians
  7. 11.
  8. 14. AB →
  9. 15. formed by two rays