Question

Sendo o angulo B igual a 30° é a hipotenusa 47m ,calcule a medida da altura a do triangulo.

Answer 1

$\large\boxed{\begin{array}{l}\underline{\sf observe\,a\,figura\,que\,eu\,anexei}.\\\rm sen(30^\circ )=\dfrac{h}{47}\\\\\rm h=47\cdot sen(30^\circ)\\\rm h=47\cdot\dfrac{1}{2}\\\\\rm h=\dfrac{47}{2}\\\\\rm h=23,5~m\end{array}}$