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← HistoryWhich surveying error increases disproportionately when algebraically summing short, biased angle measurements?
A)Cumulative propagation of systematic error✓
B)Instrument drift due to temperature
C)Incorrect assumption of earth sphericity
D)Observer parallax in sighting poles
💡 Explanation
Summing angular errors algebraically involves cumulative propagation. Therefore, any initial systematic bias will amplify with more measurements, rather than remaining bounded as a random error would, because a systematic error consistently skews each measurement in roughly the same direction.
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