GEOMETRY SYMBOLS

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Across
  1. 5. " ° "
  2. 6. "∆"
  3. 7. "rad"
  4. 9. "∡"
  5. 11. " ∢"
  6. 13. same shapes, not same size
  7. 14. "π"
  8. 15. equivalence of geometric shapes and size
Down
  1. 1. " |x-y| "
  2. 2. It is usually represented by the bar symbol "—"on top of the endpoints
  3. 3. " ∥ "
  4. 4. "⊥ "
  5. 8. " ⌢ "
  6. 10. formed by two rays
  7. 12. = 90°