👤
Cartemare
a fost răspuns

e)AB=18cm, AF=7cm si AC=21 cm, aflati AE.
f)EB=2cm,AB=10cm si AC=15cm,aflati FC. 
g)AC=25cm,EC=15cm si EB=9cm, aflati AB.

Răspuns :

Renatemambouko
e)  AE/AB=AF/AC
AE/18=7/21
AE=18X7/21=6 cm
f)  AE/AB=AF/AC
AE=10-2=8
8/10=AF/15
AF=8X15/10=12
FC=15-12=3 cm
g)AE/AB=AF/AC
AF=25-15=10
AE/(AE+9)=10/25
25AE=10AE+90
15AE=90
AE=90:15=6cm
AB=AE+EB=6+9=15 cm