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Question

Calculate the angle of 1" (second of arc or arc second) in radians.
Use 360o=2π rad 1o=60 and 1=60

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Solution

The angle can be written as,

1′′=(1/3600)

1′′=2π360×3600rad

1′′=0.0000048rad

Thus, the angle of 1′′ is equal to 0.0000048rad.


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