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    ਕੌਮੀ ਰਾਜਨੀਤੀ singh's image
    ਕੌਮੀ ਰਾਜਨੀਤੀ singh
    In fig two concentric circle with center o have radii 21cm and 43cm , if  AOB =60 find the area of theshaded region

    Written on Dec. 27, 2019, 6:38 a.m.

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