Uh oh! Wolfram|Alpha doesn't run without JavaScript.
Please enable JavaScript. If you don't know how, you can find instructions
here
.
Once you've done that, refresh this page to start using Wolfram|Alpha.
max 2/3·pi·r3 + pi·r2·h in (pi·r2) + (2·pi·r·h) + (2 pi·r2) = 4, r>0, h>0
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random