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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 .
(x+90):4 - drugi kąt
90 + x + (x+90):4 = 180
90 + x + 0,25X + 22,5 = 180
112,5 + 1,25x = 180
1,25X=180 -112,5
1,25x=67,5
x=54