alleryএক পূর্ণ ঘণ্টায় ঘণ্টার কাঁটা কত কোণ অতিক্রম করে?
A30°
B6°
C60°
D15°
Answer & Solution
Correct answer: A. 30°
প্রতি মিনিটে 0.5° হারে, 60 মিনিটে ঘণ্টার কাঁটা 30° অতিক্রম করে।
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