Va rog urgent
dau coroana!!!

Răspuns:
a) AD² = BD*CDAD² = 8*18 = 144AD =12 cm
BC= BD+ CD = 8+18 = 26 cm
b) AD² = BD*CDAD²= BD*8144= BD*8BD = 144/8 = 18 cm BC = BD + CD = 18+ 8 = 26 cm
spor la invatat :)