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C2 Differentiation - Tearing Hair Out, Please Help!
I honestly have no idea how to approach this question, and it is driving me bonkers! Could someone please tell me what kind of procedure to follow with this, and I bet it's quite simple as well, which just aggravates me even more!
Thank you very much
A container made from thin metal is in the shape of a rigth circular cylinder with height h cm and base radius r cm. The container has no lid. When full of water, the container holds 500cm3 of water.
Show that the exterior surface area, A cm^2, of the container is given by:
A = 'pi' r ^ 2 + 1000 / r
Thank you very much
A container made from thin metal is in the shape of a rigth circular cylinder with height h cm and base radius r cm. The container has no lid. When full of water, the container holds 500cm3 of water.
Show that the exterior surface area, A cm^2, of the container is given by:
A = 'pi' r ^ 2 + 1000 / r
Toffee_Kid
I honestly have no idea how to approach this question, and it is driving me bonkers! Could someone please tell me what kind of procedure to follow with this, and I bet it's quite simple as well, which just aggravates me even more!
Thank you very much
A container made from thin metal is in the shape of a rigth circular cylinder with height h cm and base radius r cm. The container has no lid. When full of water, the container holds 500cm3 of water.
Show that the exterior surface area, A cm^2, of the container is given by:
A = 'pi' r ^ 2 + 1000 / r
Thank you very much
A container made from thin metal is in the shape of a rigth circular cylinder with height h cm and base radius r cm. The container has no lid. When full of water, the container holds 500cm3 of water.
Show that the exterior surface area, A cm^2, of the container is given by:
A = 'pi' r ^ 2 + 1000 / r
formula for surface area is pir^2, for the base then 2pi.r times h (the rectangle if you like)
and we know that volume = h x pir^2 = 500
sub into area
no need for differentiation yet
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