Davies, Charles, 1798-1876 · New York and Chicago, A. S. Barnes and company · leaf 42
THEOREM [I. If from the centre of a circle a line be drawn to the middle ofa chord, I. It will be perpendicu \ar to the chord; II. And it will bisect the arc of the chord.Let C be the centre of a circle, and AB any chord. Draw CD throughD, the middle point of the chord, andproduce it to E: then… … *Note. When reference is made from one theorem to unother, in thesame Book, the number of tne theorem referred to is alone given • butwhen the theorem referre 1 to is found ir a preceding Book, the number of the Book is also g;ven.4* 42 G E 0 M £ T R V Of the Circle.
Geometry · Plane trigonometry
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