5.Oblicz miarę kąta alfa. załącznik :)
a) alfa=160/2=80
b) alfa=40/2=20
c) alfa=140
d) alfa = 180-2*25/2=65
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a) alfa=160/2=80
b) alfa=40/2=20
c) alfa=140
d) alfa = 180-2*25/2=65