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Ok, so I did a test today for advance functions and there was a question: the volume of a pop can is 350ml, find the minimum surface area and determine the dimensions.
Where I got stuck:
350=pi(r)^2*h
h=350/pi(r)^2
SA= 2pi(r)^2+2pi(r)(h)
SA= 2pi(r)^2+2pi(r)(350/pi(r)^2)
=(2(pi(r)^3+350))/(pi(r))
I'm stuck here :S
Where I got stuck:
350=pi(r)^2*h
h=350/pi(r)^2
SA= 2pi(r)^2+2pi(r)(h)
SA= 2pi(r)^2+2pi(r)(350/pi(r)^2)
=(2(pi(r)^3+350))/(pi(r))
I'm stuck here :S