DAU COROANĂ,ESTE URGENT!!!
![DAU COROANĂESTE URGENT class=](https://ro-static.z-dn.net/files/d33/9883a4fc7db8735acb1152f315ca8d4f.jpg)
Răspuns:
linia mijlocie=(16+10)/2=13cm
BC=>din BD bisectoarea=>M are unghiuri drepte
.R:13;10;40...