Question

umm ajutor.............​

Answer 1

Răspuns:

Explicație pas cu pas:

BE=2AE⇒ AB=AE+2AE=3AE

AE=AB/3 =18/3 =6 cm

BF=GF=GC=18/3 =6 cm

Aabcd=AB*BC=18/12=216 cm²

Aadf=AD*DF=/2 =12*6/2=36cm²

Aagb =AB*BC/2=18*12/2=108cm²     (BC = h  pt .toate Δ )

Aacb =AE*BC/2=6*12/2 =36 cm²

c) A ADFE=AE*AD=6*12 =72 cm²