Use vectors to find the interior angles (in degrees) of the triangle with the given vertices. (Round your answers to two decimal places.)
(−4, −7), (5, 9), (8, 2)
![Use vectors to find the interior angles in degrees of the triangle with the given vertices Round your answers to two decimal places 4 7 5 9 8 2 class=](https://us-static.z-dn.net/files/da8/77ca472181b1283b7b76d37ad21e2097.png)