Problema 1 fara a va rog

Problema 1 Fara A Va Rog class=

Răspuns :

Răspuns:

CM=AB/2+BC/2=)6+3=9cm

AM=AB/2=)12/2=6cm

DC=AM×2=6×2=12cm

AD=BC=6

A=D1+D2/2=)12×6/2=36cm2