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20 सेमी ×15 सेमी आकार की …

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20 सेमी ×15 सेमी आकार की एक आयताकार शीट के कोने से 2 सेमी भुजा वाले वर्ग काटकर एक खुला बाॅक्स बनाया गया है। बाॅक्स का बाहरी सम्पूर्ण धरातल क्या होगा।

    • Posted by Manish Prajapati 7 years, 3 months ago

    CBSE > Class 12 > Mathematics
    • 0 answers
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