একটি সুষম বহুভুজের একটি বহিস্থ কোণের মান ৪৫ ডিগ্রী হলে বহুভুজের বাহুর সংখ্যা হবে-
A. ৬
B. ৮
C. ১০
D. ১২
E. ১৬
সঠিক উত্তরঃ
B.
৮
Explanation:
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