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18 March, 23:02

How can I find the surface area of a right cone with a radius of 6 and slant height of 16

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  1. 19 March, 00:44
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    First, you have to calculate the height.

    Pythagorean Theorem:

    a^2+b^2=c^2

    Slant height=c^2

    Radius=b^2

    So, a^2+6^2=16^2

    a^2+36=256

    a^2=220

    a=14.832397

    Surface Area = πr (r + square root of h^2+r^2)

    Surface Area is approximately 414.69
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