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.
661R = 400\sqrt{R^2-441} + 525\sqrt{R^2-256} + 336\sqrt{R^2-625}
661R = 400\sqrt{R^2-441} + 525\sqrt{R^2-256} + 336\sqrt{R^2-625}
Natural Language
Math Input