Elements of geometry and trigonometry. Revised and adapted to the course of mathematical instruction in the United States (1856)
Legendre, A. M. (Adrien Marie), 1752-1833, Davies, Charles, 1798-1876 · New York : A.S. Barnes · leaf 300
know thehorizontal distance betweentwo inacessible objects Aand i>, and not finding anystation from which both ofthem could be seen, twopoints G and Z^, were chosenat a distance from each other, equal to 200 yards; fromthe former of these points A could be seen, and from thelatter i>, and at… … VIZ. AFG = 83°^^ = 53° 00,SO, BDE=b^° 30,^Z;C = 156°2o {aGF = 5i° 31, BED = 88° 30. Ans. AB=S4:dAQ7 yards. 6. From a station P th-erecan be seen three objects. A,B and G, whose distances fromeach other are known: viz.,AB--= SOO, AG= 600, and BG= 400 yards. Now, there aremeasured the horizontal…
Geometry · Trigonometry
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