সরলরেখার কোন বিন্দুতে অংকিত ২টি কোনের অনুপাত ৭ঃ২ হলে ক্ষুদ্রতম কোণের পরিমাপ কত?
A. ৩০ ডিগ্রী
B. ৩৫ ডিগ্রী
C. ৪০ ডিগ্রী
D. ৪৫ ডিগ্রী
সঠিক উত্তরঃ
C.
৪০ ডিগ্রী
Explanation:
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