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180/4,5=40
40*1,5=60
40+60=100
x=40
y=60
z=100 (1,5x)
1,5x - drugi kąt
x + 1,5x- trzeci kąt
x + 1,5x + x + 1,5x = 180
5x = 180
x = 180 : 5
x= 36
36 - jeden kąt
1,5 x 36 = 54 - drugi kąt
36 + 54 = 90 - trzeci kąt