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.
488*pi = pi/3*(180/r-96)*((15/8)^2+(15r/8)+r^2)
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random