me ajuda por favorrrrrrrrrrrr
![Me Ajuda Por Favorrrrrrrrrrrr class=](https://pt-static.z-dn.net/files/d17/f5f1f62eb44737211e5e89ef7ac209b2.jpg)
12°+2x+40°-x = 90°
2x-x = 90-52
x = 38°
O ângulo reto mede 90°
03/09