TOLONG KAKBANTUINN NO 2 PLISSS JANGAN NGASAL KALO NGASAL REPORT
[tex]2. \: ∠ega = 105° \\ ∠dhf = 80° \\ ∠bge = 180° - 105°(sudut \: pelurus) \\ = 75° \\ ∠ghc = ∠dhf \: (sudut \: berbelok \: kebelakang) \\ = 80° \\ maka \\ m∠bge +m ∠ghc = 75° +80 ° \\ = 155°[/tex]
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