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A uniform slope was measured by the method of stepping. If the difference in level between two points is 1.8 m and the slope distance between them is 15 m, the error is approximately equal to

cumulative, + 0.11 m
compensating, ± 0.11 m
cumulative, - 0.11 m
none of these

Correct Answer: cumulative, + 0.11 m

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