Ajutotorrr....e urgent...
![Ajutotorrre Urgent class=](https://ro-static.z-dn.net/files/d01/6560eeff7a94d1f79851350a228c4e4e.jpg)
Răspuns:
ABCFA'B'C'D' cub=> toate fetele pătrat
Aria ABCD= l²=AB²=4²=16 cm²