Davies, Charles, 1798-1876 · New York and Chicago, A. S. Barnes and company · leaf 38
ii), the angleADE=EBC and EAD — ECB: hence, the two triangles areequal (Th. v): therefore, AE, the side opposite ADE, uequal to EC, the side opposite EBC; and ED is equal to EB Sch. In the case of a rhombus (Def. 48),the sides AB, BC being equal, the trian-gles AEB and BEC have all the sides ofthe… … GEOMETRY BOOK II, OF THE CIRCLE DEFINITIONS. 1. The ciicumference of a circle is a curve line, all thepoints of which are equally distant from a certain point withincalled the centre. 2. The circle is the space bounded by this curve line. 3. Every straight line, CA, CD, CE, drawnfrom the centre to…
Geometry · Plane trigonometry
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