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.
sqrt(15^2 - 9^2) + sqrt(41^2 - 9^2)
sqrt(15^2 - 9^2) + sqrt(41^2 - 9^2)
Natural Language
Math Input
Extended Keyboard
