Beta Key For Free, just give the correct answer

Hey,

a cylinder is given:
high h,
radius r,
volume V,
the volume is fix and doesn't change its value. The surface(Oberfläche) A shall be minimal.
What is the value of the radius r?
or what is the value of the high h?

You just need to answer one question!

However, the account need to be registered longer than 2 weeks or so, so a new account is not allowed and of course without an beta-account : )

Fastest correct answer wins!

Good luck
Sam

not sure if i understood that question but i want a beta key really badly ^^

so i just say h = 0.001

Greetz Eld

It should be h = 2*r
:)

h = (4v/pi)^1/3
r = (v/2pi)^1/3

I am new member but hope u will appreciate my answer

the minimum surface area will occur when the height equals the diameter or 2 times the radius. Therefore it should be h = 2 * r

r = cuberoot(V/2π)

/pm me the beta key please.

delslow and elciddeburgos look that u wrote same that i was just little otherwise :)

I think my post should be the winner tho. Seeing as I'm a long standing member, and I got the answer right first. The guy above me edited his post.

edit: Oh and he's new too! I hope I get in the beta!

/crosses fingers

I'm not good at maths and I came up with this:

h= 16V/pi³

since I've created my account only a few days ago, I don't think I can win anyway !