A treatise on surveying and navigation: uniting the theoretical, the practical, and the educational features of these subjects (1852)
Robinson, Horatio N[elson], 1806-1867. [from old catalog] · Cincinnati, J. Ernst · leaf 21
ither inor without the circumference of the circle. When the given point is in the circum-ference, as A, draw AC the radius, andfrom the point A, draw AB perpendicularto A C; AB is the tangent required. Proof, (th. 4, b. 3). When A is without the circle, drawA C to the center of the circle ; and… … PROBLEM 13. On a given line, to describe a segment of a circle, that shall containan angle equal to a given angle. INTRODUCTION 17 Let AB be the given line, and 0the given angle. At the ends of thegiven line, make angles DAB, DBA,each equal to the given angle, 0.Then draw AE, iL6> perpendiculars…
Surveying · Navigation
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