Odpowiedź :
[tex]tg\alpha=\frac{a}{b}\\\\tg\alpha=\frac{3b}{b}\\\\tg\alpha=3\\\\\alpha\approx71,6^o[/tex]
[tex]tg\beta=\frac{b}{a}\\\\tg\beta=\frac{b}{3b}\\\\tg\beta=\frac{1}{3}\\\\tg\beta\approx0,3333\\\\\beta\approx18,4^o[/tex]
[tex]tg\alpha=\frac{a}{b}\\\\tg\alpha=\frac{3b}{b}\\\\tg\alpha=3\\\\\alpha\approx71,6^o[/tex]
[tex]tg\beta=\frac{b}{a}\\\\tg\beta=\frac{b}{3b}\\\\tg\beta=\frac{1}{3}\\\\tg\beta\approx0,3333\\\\\beta\approx18,4^o[/tex]