Question

two right circular cylinder of equal volume are such that there raddi in the ratio 4 is to 5 find the ratio of there height

Answer 1

let radius be R and r

let height be H and h

given= R/r= 4/5

let R =4x and r= 5x

so volume of cylinder with radii 4x = π16x^2H

H= 1/π16x^2

similarly. h= 1/π25x^2

so,. H/h=25/16