Răspuns:
a) AB = 15 cm ; AC = 20cm
b) AB = 8 cm ; AC = 8√3 cm
Explicație pas cu pas:
a)
DB = 9 cm ; DC = 16cm ; BC = BD + DC = 9 cm + 16 cm = 25 cm
AB = √BD×BC = √9×25 = √225 = 15 cm
AC = √DC×BC = √16×25 = √400 = 20 cm
b)
DB = 4 cm ; DC = 12 cm ; BC = BD + DC = 4 cm + 12 cm = 16 cm
AB = √BD×BC = √4×16 = √64 = 8 cm
AC = √DC×BC = √12×16 = √192 = √64×3 = 8√3 cm
