The elements of navigation : containing the theory and practice, with all the necessary tables, to which is added, a treatise of marine fortification ... (1754)
Robertson, J. (John), 1712-1776, Adams, Charles Francis, 1807-1886, former owner. BRL, Adams, John, 1735-1826, former owner. BRL, Boston Public Library) John Adams Library BRL · London : Printed for J. Nourse ... · leaf 72
GEOMETRY. 5* 164. PROBLEM XIV. To draw a tangent to a given circle, that Jhall pafs throy a given point A. When a is in the circumference of the circle. Operation, ift. From the centre c, drawthe radius ca. 2d. Thro a draw b D perpendicular to ca(149). and b d is the tangent required. This depends… … 165. When the given point a, is without the given circle. Operation, ift. From the centre c draw „> >-..j CA, which bifecl: (146) in B. A1^ 2d. On b, with the radius ba, cut the givencircumference in d. 3d. Thro d, the line ae being drawn will bethe tangent required. This depends on art. 213,…
Navigation · Nautical astronomy · Fortification
Internet Archive · Boston Public Library · Public Domain Mark 1.0. Free to use for anything.
