Răspuns:
Explicație pas cu pas:
a)BD=9cm DC=16 cm
BC=BD+DC=9+16=25 cm
AB²=BD×BC=9×25 AB=3×5=15 cm
AC²=DC×BC=16x25 AC=4x5=20 cm
b) BD=2 cm BC=6 cm ⇒DC=6-2=4 cm
AB²=BD×BC=2x6 AB=2√3cm
AC²=DC×BC=4x6 AC=2√6 cm
c) DC=5 cm BC=15 cm ⇒ BD=15-5=10 cm
AB²=BD×BC=10x15 AB=5√2 cm
AC²=DC×BC=5×15 AC=5√3 cm