GEOMETRIC SYMBOLS

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Across
  1. 1. line that start from point A
  2. 4. distance between points x and y (|x–y|)
  3. 9. 1º = 60´ (´)
  4. 10. = 90º (∟)
  5. 12. 1´ = 60´´ (´´)
  6. 13. parallel lines (||)
  7. 14. triangle shape (Δ)
  8. 15. equivalence of geometric shapes and size. (≅)
Down
  1. 2. formed by two rays(∠)
  2. 3. an angle, which is formed by the intersection of 2 great circles of the sphere.(∢)
  3. 5. same shapes, not the same size (~)
  4. 6. (|)
  5. 7. 1 turn = 360º (º)
  6. 8. the line from point A to point B. (AB)
  7. 11. π = 3.141592654… (π)