The Civil engineer and architect's journal, scientific and railway gazette (1839)
London : [William Laxton] · leaf 333
38 = 7.2116783 = 7-3624785 = 2-5387249 = 2-21SS909 2)19-33177269-6658363 angle OFG.„ BFG. 10- 37 35-76 = „ O F B. Hence, in the triangle B F O, there are given two sides and theirincluded angle, from which the angle FBO is found to be 145=564S-81; the angle FOB= 23 2.3 35 -43; and the side OB… … to be 136 yards ; a flagstafl is set up at C, or a headland in the samehorizontal plane with AB, the angles CAB, C B A, are observed tobe 41 and 102 respectively. The angles of elevation of the top of arock T, at the three stations A, B, C, are observed to be 38, 31, and27^ respectively. Required…
Architecture · Civil engineering · Science
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