Mathematics · Mensuration
एक 21 मीटर लंबे, 18 मीटर चौड़े और 12 मीटर ऊंचे हॉल के अंदर एक छड़ रखी गई है। छड़ की अधिकतम संभावित लंबाई (मीटर में) क्या है?
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