va roooog repede!!!!!
![Va Roooog Repede class=](https://ro-static.z-dn.net/files/dd5/0f2d4e346636b57659a0bb4c89fa6589.jpg)
Răspuns:
B=2*3cm+a=4cm
B=6cm+4cm+4cm
B=8cm+6cm
B=14cm