Exploring Geometry Symbols

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Across
  1. 4. Δ
  2. 7. arcminute, 1° = 60′
  3. 8. ″
  4. 10. = 90°
  5. 12. ∥
  6. 14. same shapes, not same size
  7. 15. ≅
Down
  1. 1. ∢
  2. 2. ∡
  3. 3. vector product
  4. 5. distance between points x and y
  5. 6. °
  6. 9. ⊥
  7. 11. line from point A to point B
  8. 13. formed by two rays