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 92
Therefore ae : c £ : : ed : e b. (25°) Confequently aexeb = cexed, (245) … •56. 0 G E O M E T R Y. 256. THEOREM XXIX. . If a regular polygon (a b cde f) be infer ibed irla circle ; and parallel to thefe fides if tangents to thecircle be drawn, meeting one another (in the pointsa, by c, d, e, f); then Jhall the figure formed bythefe tangents, circumfcribe the circle, and…
Navigation · Nautical astronomy · Fortification
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