Question

4) Qual o valor, em radianos, do arco com 210°? ( A ) 7 ��/6 ( B ) 5 ��/6 ( C ) ��/4 ( D ) 5 ��/3

Answer 1

$\boxed{\begin{array}{l}\sf210^\circ=\dfrac{210}{180}\pi~rad=\dfrac{7\pi}{6}~rad\end{array}}$