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180 - 90 = x +1/4*x + 22.5
90 - 22.5 = x + 1/4 *x
67.5 = 5/4x | *4/5
54 = x
180-90=90
90-54=36
odp : miary kątów ostrych tego trójkąta to 54 i 36 .