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What is the radius, in inches, of a right circular cylinder if its lateral surface area is $3.5$ square inches and its volume is $3.5$ cubic inches?

 Mar 1, 2021
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Hint: set up a system of equations:
\(2\pi r h=3.5\\ \pi r^2h=3.5\)

Divide the second equation by the first one:

\(\frac{\pi r^2h}{2\pi r h}=1\\ \)

then, cancel out like terms. 

Can you take it from there?

 Mar 1, 2021

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