Question

Determine a medida em radiano, equivalente a:

a) 225 ° = b) 30° =

Answer 1

180º = π 

usando regra de 3


$a)\\\\ \frac{225}{180}= \frac{x}{\pi}\\\\ \frac{225\pi}{180} =x\\\\ \frac{5\pi}{4}= x \\\\\\\\ b) \\\\ \frac{30}{180} = \frac{x}{\pi} \\\\ \frac{30\pi}{180}=x\\\\ \frac{\pi}{6} =x$