In geometry, the symbol '-' typically represents the concept of "line segment" or "subtract." However, it is commonly not used as a formal representation in geometric figures.
If you are asking about equivalence or congruence in terms of symbols, here is a clarification:
- A: ~= signifies "is similar to" (used with shapes).
- B: ~ also signifies "is similar to."
- C: = signifies "is equal to" (used for lengths or measurements).
- D: '-' often represents a line segment or an operation, but not a specific geometric concept by itself.
If you're specifically looking for how the '-' symbol is used in the context of your question, it typically signifies parts of objects or lengths rather than a specific geometric property like congruence or similarity.