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This is, as noted, a possible duplicate of an existing question that asks why triangular cookies are called hamentaschen. If that's not the intent of this question, then I'm not sure what is (see also my comment above). I'm going to close it until such time as the asker clarifies his intent.
Like any library, Mi Yodeya offers tons of great information, but does not offer personalized, professional advice, and does not take the place of seeking such advice from your rabbi.