एक आयताकार मैदान 90 मीटर लंबाई तथा 70 मीटर चौड़ाई का है एक आदमी इसकी 5 बार परिक्रमा करता हैं उसके द्वारा चली गई दूरी कितनी होगी
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45 may be but suspense h
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perimeter= distance covered by man in 1 round
perimeter=2*l+b=2(90+70)=2*160=320
distance in one round=320 metre
distance in 5 round =320*5=1600 metre answer
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