Question

the radiii of a cylinder are in the ratio 2:3 and there heights in the ratio of 5:3 then find the ratio of their volume​

Answer 1

Step-by-step explanation:

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/9x

= 10 / 9