# The total plane angle subtended by a circle at its centre is a) pi rad b)2pi rad c)2pi /3 rad d) pi/2 rad

- The total angle subtended by a circle at its centre is equal to 360 degrees.
- Convert 360 degrees to radians:
- 360 * (pi / 180) = 2 pi radians

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- The total angle subtended by a circle at its centre is equal to 360 degrees.
- Convert 360 degrees to radians:
- 360 * (pi / 180) = 2 pi radians

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