Davies, Charles, 1798-1876 · New York and Chicago, A. S. Barnes and company · leaf 223
A A 5 = 40.05 chains; CD=29.87 chains,50=26.27 chains AD = 37.01 chains, and A C = 55 chains : required the area of the quadrilateral Ans. 101 A. 1 R 15 P19* 122 a PPLICATIONS Mensi rat of Surfaces … Remark.— Instead of measuringthe four sides of the quadrilateral,we may let fall the perpendicu-lars Bb, Dg, on the diagonal AC.The area of the triangles may thenbe determined by measuring theseperpendiculars and diagonal AC. The pendiculars arv,Dg —18.95 chains, and BL=z]7.92 chains. 2. Required…
Geometry · Plane trigonometry
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