Cyclopedia of architecture, carpentry, and building : a general reference work (1912)
American Technical Society · Chicago : American Technical Society · leaf 92
tangent to a circle from a pointouf.side the circle. With O as a center and a radius of about 1 inch draw the givencircle. Assume P some point outside of the circle about 2^ inchesfn)m the center. Draw a straight line passing through P and 0.Bi.sect P O and with the middle point F as a center… … 5 I
Architecture · Building
Internet Archive · Kelly Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
