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Mathematics
Problem
How many radians are equal to
180
∘
180^{\circ}
18
0
∘
? a)
2
π
2\pi
2
π
b)
π
2
\dfrac{\pi}{2}
2
π
c)
π
\pi
π
d)
π
4
\dfrac{\pi}{4}
4
π
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