Question

radius of two cylinder 2:3and height 5:3 find total surface area?​

Answer 1

Let the radii be 2x and 3x,

let the height be 5y and 3y.

so, ratio of volume =r²h/R²H =(2x)²×5y/(3x)²×3y =20x²y/27x²y =20/27,

ratio of CSA =rh/RH =2x×5y/3x×3y =10xy/9xy =10/9.

the value of x and y can be termed to be get highes value and therefore bring forth in taking radius calculation

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