a closed cylindrical tank is to be made with a fixed volume. find the relative dimensions of the tank which will require the least amount of material used.
a.The height should be twice the radius of the base
b.the height should be equal to the radius of the base
c. the radius of the base should be twice the height.
d. all of the above.

Question

a closed cylindrical tank is to be made with a fixed volume. find the relative dimensions of the tank which will require  the least amount of material used.
a.The height should be twice the radius of the base
b.the height should be equal to the radius of the base
c. the radius of the base should be twice the height.
d. all of the above.

anonymous · Answer

hey guys i got the answer A here but can u read http://konigcruz.wikispaces.com/file/view/problems+involving+maxima+and+minima.pdf

anonymous · Answer

do you think all can be answer or just A?

anonymous · Answer

yes the height should equal the diameter to minimize the area if the volume is fixed

anonymous · Answer

A is correct, the others are not

anonymous · Answer

thanks satelite

anonymous · Answer

yw