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ABCDEFGH este cub, iar punctele O şi Q sunt
centrele fetelor ABCD, respectiv BCGF.
Calculaţi măsurile unghiurilor: (GO, BD),
<(HO, BG), <(AB, OQ), <(BO, EF). E urgenttttttttttttttttttttttttttttttt dau 60 pct