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The circumference of the base of …

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The circumference of the base of a cone is 220/7cm and its slant height is 13cm. (Use 22/7)

    • Posted by Kajal Duhan 8 years, 3 months ago

    CBSE > Class 09 > Mathematics
    • 1 answers

    Pushkar Rai 8 years, 3 months ago

    Circumference of base = 220/7 cm 2πr = 220/7 2×22/7×r = 220/7 r = 5cm Slant height (l) = 13cm CSA of cone = πrl =( 22/7×5×13)cm² = 204.28cm²

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