Odpowiedź:
[tex]tg25 = \frac{2}{b} \\ 0.4663 = \frac{2}{b} \\ b = \frac{2}{0.4663} = 4.289 \\ sin25 = \frac{2}{c} \\ 0.4226 = \frac{2}{c} \\ c = \frac{2}{0.4226} = 4.7326 \\ \\ \beta = 180 - 90 - 25 = 65stopni[/tex]
