5) Al=288[tex] \sqrt{3} [/tex] , Lb= 8cm Ab=3[tex] x^{8} [/tex][tex] \sqrt{3} [/tex]/2=> 3x64[tex] \sqrt{3} [/tex]/2=>Ab= 192[tex] \sqrt{3} [/tex]/2 =>Ab= 96[tex] \sqrt{3} [/tex]
At=Al+Ab
At=288[tex] \sqrt{3} [/tex]+ 96[tex] \sqrt{3} [/tex]
pana aici am putut ajunge sper ca ti-ai facut o idee
