A treatise on surveying ; in which the theory and practice are fully explained (1860)
Alsop, Samuel · Philadelphia, E. C. & J. Biddle & co. · leaf 261
g [North 5.64chains from the angular point. Now, the bearings of thesides being ET. 46° 15 E. and N. 42° W., it is required tofind the distance to the division line, measured on the firstside. Ans. 11.58 ch. 382. If the point P were exterior to the angle, the con-struction and calculation would be… … ^-.-v 23.42Draw PE parallel to AB.Erect the perpendicular DF N\ j = AE, and make FC = ED. \ \ / Then CB will be the divi- • ^ sion-line. For, as before, AIHD = the given area; but PTTFT =PBI + CKD; .-. HIBK = CKD, and AIHD = ABC. r : tan. 30°:: AP (23.42) : AE = DF = 13.52;whence CF = DE = AE + AD…
Surveying
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