Find the ratio of the surface areas of two cones if their diameters of the bases are equal and slant heights are in the ratio of 4:3.

Explanation

given that

radius of both the cone are equal

so `r=r`

let slant height of 1st cone `l=4x`

and slant height of 2nd cone`L=3x`

so ratio of surface area `=(pirl)/(pirL)`

`=l/L`

`=4x/3x`

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