1) Liczby x-1,x,5 sa długosciami bokow trojkata rownoramiennego .Oblicz x
x-1 nie moze byc rowne
x-1=5
x=6
dlugosci bokow trojkata to 5,6,5
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x-1 nie moze byc rowne
x-1=5
x=6
dlugosci bokow trojkata to 5,6,5