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.
diagonal length of trapezoid with base lengths 18 and 6, side lengths 12 and 16
diagonal length of trapezoid with base lengths 18 and 6, side lengths 12 and 16
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random