Question #290740

Two cylindrical drums have their volumes in ratio 8:27


1
Expert's answer
2022-01-26T16:01:49-0500
V=πr2hV=\pi r^2 h

Suppose that these two cylinders are similar


r1/r2=h1/h2r_1/r_2=h_1/h_2

Then


V1V2=πr12h1πr22h2=(r1r2)3=827\dfrac{V_1}{V_2}=\dfrac{\pi r_1^2h_1 }{\pi r_2^2h_2}=(\dfrac{r_1}{r_2})^3=\dfrac{8}{27}

r1r2=23=h1h2\dfrac{r_1}{r_2}=\dfrac{2}{3}=\dfrac{h_1}{h_2}


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