Question

Help Matematica!!!!!!!

Answer 1

$\sin(30) = \frac{cat.oposto}{hipotenusa} \\ \sin(30) = \frac{x}{1000} \\ \frac{1}{2} = \frac{x}{1000} \\ 2x = 1000 \\ x = \frac{1000}{2} \\ x = 500$