Question

Va rog,vreau rezolvare completa!​

Answer 1

Răspuns:

Sper ca ti-a fost de ajutor!

Explicație pas cu pas:

a)DE||BC⇒AD/AB=AE/AC

3/9=6/AC=1/3

AC=6*3=18cm

b)DE||BC⇒AD/BD=AE/CE

AD=16-12=4cm

4/12=5/CE=1/3

CE=5*3=15cm

c)DE||BC⇒AD/BD=AE/EC

BD=36-12=24cm

12/24=AE/6=1/2

AE=6/2=3cm

d)DE||BC⇒AD/AB=AE/AC

AD/12=3/18=1/6

AD=12/6=2cm