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The radius and slant height of …

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The radius and slant height of a right circular cone are in the ratio 7:13 and its curved surface area is 286cm. Find its radius

    • Posted by Rajesh Kumar Didwadiya 6 years, 10 months ago

    CBSE > Class 10 > Mathematics
    • 1 answers

    Aruneeraj K 6 years, 10 months ago

    Radius is 7 cm Take radius and slant height as 7x and 13x So csa=3.14×r×l, 286=22/7*7x*13x, x²=1 x=1& radius =7

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