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Hi Tina, You said that you got $ r = \left( \frac{V}{\pi}\right)^ {1/3}$ or $r^3 = \frac{V}{\pi}.$ I got $r^3 = \frac{V}{2 \pi}.$ You also have an earlier expression for $h.$ You want the ratio of height to diameter so take your expression for $h$ and divide both sides by $r.$ On the right side you will have an expression involving $r^3$ so substitute for $r^3$ and simplify. Finally divide both sides by 2 since you want the ratio of height to diameter. Write back if you need more assistance, | ||||||||||||
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