A treatise on surveying ; in which the theory and practice are fully explained (1860)
Alsop, Samuel · Philadelphia, E. C. & J. Biddle & co. · leaf 265
convenient for field operations.EF may be measured directly on the ground; whence FK is known, and IL = - ^^ , as before.> 2FE Ex. 2. Given GA North, AB K 89° E. 7.86 chains, andBC S. 1° 30 W., to cut off 10 acres by a line parallel toAB. Required the distance of the division line from A. Ans.… … Sec. L] LAYING OUT LAND. 263 between EL and EG: CD p Fig 178. parallel to BL will be the ^ -^ra division line. Eor, by the \ »^B •\0 lemma, ECD = EBG; \ / \/ \ whence ABCD = ABG, \ J i 1 A * *• the reqi lired area. \ /\ / \/ A*^ I \ » , N. .W \i> gi\• A N -%a»E The calculation may be performed…
Surveying
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
