Răspunsuri

2014-04-12T18:28:36+03:00
A=AB*BC*sin<45/2
=12√2*8* √2/2  totul supra 2=
=12*4*√4 supra 2=
=12*4*2/2=
=12*4=48
2014-04-13T00:40:13+03:00