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    If height & slant height are given then how to find radius?
    Davneet Singh's image
    Davneet Singh

    Hi Mridul,

    The height, slant height and radius form a right angled triangle

    cone slant height.png

    Where slant height is the hypotenuse,

    height is the height

    and radius is the base.

     

    Thus, by Pythagoras theorem

    l2 = r2 + h2

    r2 = l2 - h2

    Written on March 11, 2017, 8:21 p.m.

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