Legendre, A. M. (Adrien Marie), 1752-1833, Brewster, David, Sir, 1781-1868, Davies, Charles, 1798-1876 · New York, Wiley & Long · leaf 250
e proportionAs cos C 41- 04 ar.-comp. - - log. 0.122G60 IstoR 10.000000 So is CE 67.84 1.83148G To CB 89.98 : . - 1.954146 Note. If only the summit B of the building or place whoseheight is required were visible, we should (htermine the dis-tance CE by the method shown in the following example;this… … 2. To find upon the ground the distance of the point A ^ from an inaccessible object - ^-^^/i^ B, we must measure a base AD, and the two adjacent *^fe™ angles BAD, ADB. Sup- -^ pose we have found AD= 588.45 yards, BAD = 103° 55 55,andBDA = 36°04; we shall thence get the third angle ABD=40° 05, and…
Trigonometry · Geometry
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