A treatise on surveying, comprising the theory and the practice ; (1887)
Gillespie, W. M. (William Mitchell), 1816-1868, Staley, Cady, 1840- [from old catalog] ed · New York, D. Appleton and company · leaf 500
n of a point, by measuring the angles be-tween three lines conceived to pass from the required point to threeknown points, as illustrated in Art. 8. To fix the place of the point from these data is much moredifficult than in the preceding methods, and is known as the Problem of the three points. It… … measured. To fix this point, S, on the plat containing A, B, andC, draw lines from A and B, making angles with A B each equal 486 MARITIME OR HYDRO GRAPHICAL SURVEYING. to 90° — A S B. The intersection of these lines at 0 will be thecenter of a circle passing through A and B, in the circumferenceof…
Surveying
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
![An illustration from Il terzo [-qvinto] libro ... (1551)](https://img.insideoutlibrary.com/img/200/ia-ilterzoqvintolib00serl-29-44.webp)
