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Diameter of the base of cone …

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Diameter of the base of cone is 10.5cm and its slant height is 10cm.Find its curved surface area

    • Posted by Hsrshdeep Singh 4 years, 8 months ago

    CBSE > Class 09 > Mathematics
    • 1 answers

    Yogita Ingle 4 years, 8 months ago

    Radius (r) of the base of cone = 10.5/2

    = 5.25 cm

    Slant height (l) of cone = 10 cm

    CSA of cone = πrl

    = 22/7 × 5.25 × 10
    = 22 × 0.75 × 10

    = 165 cm2

    Therefore, the curved surface area of the cone is 165 cm2

    1Thank You

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