Grieves, Loren C. (Loren Chester), b. 1878 · Washington, United States Infantry Association · leaf 77
f- ^- ■^-- … Angles of less than 30 degrees or greater than 120 degreesat the point of intersection should be avoided, as the twointersecting lines are so nearly parallel that it is difficult tolocate the exact point of intersection. Flat Sketch 71 To Locate a Point by Resection Suppose that at the point F of…
Maps, Military · Military topography
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