Podaj miarę kąta ostrego jaki tworzą wskazówki zegara o godzinie : 13:00,14:00,17:30,20:30
360/12=30
13.00-30
14.00-60
17.30-15
20.30-75
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360/12=30
13.00-30
14.00-60
17.30-15
20.30-75