Mathematics · Mensuration
7 मीटर लंबाई और 4 मीटर चौड़ाई वाले एक आयत के रूप में एक तार को मोड़कर एक वृत्त बनाया जाता है। वृत्त का क्षेत्रफल ज्ञात कीजिए।
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38.5 वर्ग मीटर
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