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.
area of a triangle with vertices (-5, 3), (0, -1), (4, 4)
area of a triangle with vertices (-5, 3), (0, -1), (4, 4)
Natural Language
Math Input
Extended Keyboard
