Răspuns:
Explicație pas cu pas:
a) BD=9cm CD=16 cm
BC=BD+DC=25 cm
T catetei
AB²=BD×BC=9×25 AB=3x5=15 cm
AC²=DCxBC=16x25 AC=6x5=20 cm
b) BD=4 CD=12 cm
BC=4+12=16cm
AB²=4x16 AB=2x4=8 cm
AC²=12×16 AC=8√3 cm
c) BD=9/3 cm=3 cm DC=33cm
BC=3+33=36 cm
AB²=3×36 AB=6√3cm
AC²=33×36 AC=6√33 cm
d0 BD=x CD= 9x
BC=10 x
AB²=x×10x AB=x√10 cm
AC²=9x×10x AC=3x√10 cm
