4. Offsets are measured with an accuracy of 1 in 40. If the point on the paper from both sources of error (due to angular and measurement errors) is not to exceed 0.05 cm on a scale of 1 cm = 20 m, the maximum length of offset should be limited to
9. If arithmetic sum of latitudes of a closed traverse is ?Lat and closing error in latitude is dx, the correction for a side whose latitude is l, as given by Transit Rule, is
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