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.
180/pi*atan2(20*2, 60-86.717)
180/pi*atan2(20*2, 60-86.717)
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random