alleryএকটি ঘড়িতে ঠিক তিনটে বাজে। কাঁটা দুটি কী কোণ তৈরি করে?
A90°
B75°
C120°
D60°
Answer & Solution
Correct answer: A. 90°
মিনিটের কাঁটা 0°-তে এবং ঘণ্টার কাঁটা 90°-তে থাকে, যা 90° কোণ তৈরি করে।
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