what is radian? how to calculate radian to degree? give an example also.
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To convert into degrees
1 RADIAN =180°
PIE
EG:
radian is defined as plane angle ... means on pàpér only .... subtended at center of a circle by an arc equal in length to the radius of circle..
θ = arc = l
radius r
Multiply the radians by 180/π to convert to degrees..
eg: π/12 radians
= π/12 × 180/π
= 180π/12π
= 15°