Question

expresse em radianos 30°

Answer 1

π ----180°
x------30°

$x= \frac{30 \pi }{180} \\ \\ x= \frac{ \pi }{6} rad$

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π----180°
x-----15°

$x= \frac{15 \pi }{180} \\ \\ x= \frac{ \pi }{12} rad$

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π-----180°
x-----120°

$x= \frac{120 \pi }{180} \\ \\ x= \frac{2 \pi }{3} rad$

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π--------180°
x--------210°

$x= \frac{210 \pi }{180} \\ \\ x= \frac{7 \pi }{6}$