Geometry Symbols

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Across
  1. 1. - ⊂
  2. 5. lines - ⊥
  3. 6. of - ∈
  4. 7. - Δ
  5. 9. segment - AB (with endpoints A and B)
  6. 12. - ≅
  7. 13. - ◯
  8. 14. - ∠
Down
  1. 2. - □
  2. 3. - ⊃
  3. 4. (of sets) - ∪
  4. 6. - ≡
  5. 8. - AB with a line above it
  6. 10. lines - ∥
  7. 11. equal - ≠