allerysin 30°-এর মান কত?
A1
B1/2
C√3/2
D1/√2
Answer & Solution
Correct answer: B. 1/2
একটি 30-60-90 ত্রিভুজে 30 ডিগ্রির বিপরীত বাহুটি অতিভুজের অর্ধেক হয়।
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