Dau COROANA daca faceti repede
![Dau COROANA Daca Faceti Repede class=](https://ro-static.z-dn.net/files/d3d/63f3dd4efc9f6dcaff00deffa6c0b8a3.jpg)
Explicație pas cu pas:
a ___________ c
¦ |
B ¦___________| d