Răspuns :
Pdreptunghi=2L+2l, 72,5=25,06*2+2l,
2l=72,5-50,12=21,93, l=22,38/2=11.19
Adreptunghi=Lxl=25,06x11,19=280,4214[tex] cm^{2} [/tex]
Pdreptunghi=2L+2l, 72,5=25,06*2+2l,
2l=72,5-50,12=21,93, l=22,38/2=11.19
Adreptunghi=Lxl=25,06x11,19=280,4214[tex] cm^{2} [/tex]