Question

Convert 40° 20' into radian measure​

Answer 1

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Answer 2

Answer

we know that 180⁰= π radian

$Hence \: 40⁰20'=40(20× \frac{1}{60})$

$=40 \frac{1}{3} \: digree = \frac{\pi}{180} \times \frac{121}{3} \: radian$

$therefore \: 40°20′= \frac{121\pi}{540} \: radian$