Se dau triunghiurile ABC si DEF. Stabiliti dacă cele doua triunghiuri sunt asemenea in următoarele situații:

a) mA=38 de grade; mB=65; mE=65; mF=70

b) mA=45; mC=mF=54; mD=81

c) mB=mE=70m; A=40m; mF=60

d) mC=45; mA supra mB=5supra4; mD=75mE=60

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