दाहरण (7): एक वर्गाकार मैदान का क्षेत्रफल 1600 वर्ग
मीटर है। इसके चारों ओर 2.5 मीटर चौड़ा मार्ग हो, तो
मार्ग का क्षेत्रफल होगा-
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Answer:
Sorry could you explain in English because I don't know hindi sorry
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(a)²=√1600
a=40
2x (L+B+2x)
2*2.5(40+40+2*2.5)
5*85
425
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