দুটি কোণের যোগফল ১৮০ ডিগ্রী হলে কোণ দুটি একে অপরের -
A. পূরক কোণ
B. সম্পূরক কোণ
C. স্থুলকোণ
D. সূক্ষ্মকোণ
সঠিক উত্তরঃ
B.
সম্পূরক কোণ
Explanation:
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