Question 1125975
r radius
x length
combined length and girth, {{{x+2pi*r=132}}}
volume {{{x*pi*r^2}}}


{{{v=(132-2pi*r)pi*r^2}}}

{{{v=132pi*r^2-2pi^2*r^3}}}


{{{dv/dr=264pi*r-6pi^2*r^2=0}}}


{{{44r-pi^2*r^2=0}}}


{{{r(44-pi^2*r)=0}}}


r=0 makes no sense here.


{{{44=pi^2*r}}}


{{{highlight_green(r=44/pi^2)}}}-------radius for maximum volume.


{{{x=132-2pi*(44/pi^2)}}}

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