Radians

$π$ radians equals $18 0^{\circ}$ .

Precalculus: The unit circle

18 0^{\circ} = π rad

Work through it

$60 \cdot \frac{π}{180} = \frac{π}{3}$

$\frac{3 π}{4} \cdot \frac{180}{π} = 13 5^{\circ}$

$π$ radians equals $36 0^{\circ}$ .

A full turn is $2 π$ . So $π$ is a half turn, $18 0^{\circ}$ .

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