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Calculati aria triunghiului ABC daca:
c)AB=5cm,AC=8cm si BC=7cm
d)AB=AC=BC=6CM
e)AB=2radical2,BC=3radical2 si mB=90
f)AB=8radical6,AC=BC si mC=90
g)AB=2,4cm,AC=5cm si mC=90
URGENT!!!