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प्रश्न
Find the degree measure corresponding to the following radian measures
`pi/9`
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उत्तर
`pi/9` radians
π radians = 180°
∴ 1 radian = `(180/pi)^circ`
Hence `pi/9` radians = `(180/pi xx pi/9)^circ`
= 20°
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