Question

nos triangulos retangulos a seguir determine o quanto vale x

Answer 1

A)


$\sin(30 ) = \frac{x}{30} \\ \\ \frac{1}{2} = \frac{x}{30} \\ \\ 2x = 30 \\ x = 15$



B)
$\cos(60) = \frac{x}{15.6} \\ \\ \frac{1}{2} = \frac{x}{15.6} \\ \\ 2x = 15.6 \\ x = \frac{15.6}{2} \\ x = 7.8$


C)
$\tan(x) = \frac{14 \sqrt{3} }{42} \\ \\ \tan(x) = \frac{ \sqrt{3} }{3} \\ x = 30$