Question

Calcule a altura x do poste, sabendo que a sombra mede 15 m. veja a figura.

1fd0c18eb6f6e9ee62f60b66ee72a045.docx

Answer 1

$Resolu\c{c}\~ao\to \left\{\begin{array}{ccc}sen\ 50^o = \frac{CO}{hip} \\\\sen\ 50^o = \frac{x}{15}\\\\0,77 = \frac{x}{15}\\\\\boxed{\boxed{x\approx11,55}} \end{array}\right$

Espero ter ajudado. :))