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 56
42 LAND-SUE YEYING. will thus be divided into trapezoids (excepting a triangle at eachend), and their content can be calculated by Art. 64. . Otherwise : a line may be drawn outside of the figure, and per-pendiculars to it be drawn from each angle. In that case thedifference between the trapezoids…
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-58-76.webp)
