Davies, Charles, 1798-1876 · New York and Chicago, A. S. Barnes and company · leaf 67
66 GEOMETRY Problems In a similar manner, it maybe proved that OE and OD arcequal. hence, the three per-pendiculars, OD, OF, and OE,are all equal. Now, if with O as a centre,^and OF as a radius, we describe the circumference of a circle, it will pass through the pointsD and E. and since the sides…
Geometry · Plane trigonometry
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
