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Cunoscand Ambc=48 cm^2 AB=16,M APARTINE (AB) CU AM=4 CM ,AFLATI Aabc

Răspuns :

Ambc=MB*h/2, MB=16-4=12
48=12*h/2
48=6*h
h=8 inaltimea
Aabc=AB*h/2=16*8/2=16*4=64