Question

ex 16 va rog repede că trebuie să merg la școală​

Answer 1

Răspuns:

A/______B/____/C____________/D

CD=2AB

CD=3BC

CD=AC+1,5

AB+BC=AC

⁶CD=³CD/2+²CD/3+1,5

CD(6-3-2)/6=1,5

CD/6=15/10=3/2

CD=18/2=9. CD=9cm

AD=AC+CD=5/6CD+⁶CD=11CD/6

AC=5/6CD=5/6×9=45/6=15/2=7,5cm

AD=(11/6)×9=99/6=33/2=16,5cm

verificare

AB=9/2=4,5cm

BC=9/3=3cm

CD=AC+1,5=7,5cm+1,5cm=9cm