Question

qual a altura do prédio? com um angulo de 30°

Answer 1

$Tg= \dfrac{Co}{Ca} \\\\\\Tg30= \dfrac{x}{60} \\\\\\ \dfrac{ \sqrt{3} }{3}= \dfrac{x}{60} \\\\\\ 60\sqrt{3}=3x\\\\\\x= \frac{60 \sqrt{3} }{3} \\\\\\x=20 \sqrt{3} m$


Forte abraço!