Mathematics · Surveying Geometry
In a chain survey, to determine the distance across a river along a chain line, points C, A, and B lie on the chain line. Points B, D, and E are collinear. Given: CA = AD = 40 m, angle CAD = 90°, distance CE = 75 m, and angle ACE = 90°. Determine the length AB.
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 135.0 m
- 237.5 m
- 340.0 m
- 445.7 m✓
Correct answer
45.7 m
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