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Mathematics, 16.10.2020 14:01 connorgking

Unghiurile ∢AOB, ∢BOC, ∢COD și ∢DOA sunt unghiuri în jurul punctului O, ∢AOB = 80°, ∢BOC = 140° și CO ⊥ OD. a) Calculați măsurile unghiurilor ∢AOC și ∢AOD.
b) Demonstrați că semidreapta opusă semidreptei OC este bisectoarea unghiului ∢AOB.

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Unghiurile ∢AOB, ∢BOC, ∢COD și ∢DOA sunt unghiuri în jurul punctului O, ∢AOB = 80°, ∢BOC = 140° și C...

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