Răspunsuri

2014-05-10T18:11:38+03:00
Construiesti diagonala AC
In romb diagonalele se injumatatesc si sunt perpendiculare
Aplici Pitagora in ΔAOB, AB²=AO²+OB²
6²=AO²+3²
AO²=36-9
AO²=27
AO=3√3
AC=6√3