T. Sundara Row's geometric exercises in paper folding. Edited and rev. by Wooster Woodruff Beman and David Eugene Smith (1901)
Sundara Rao, Tandalam, 1853-, Beman, Wooster Woodruff, 1850-1922, Smith, David Eugene, 1860-1944 · Chicago Open Court Pub. Co · leaf 144
ER FOLDING 125 and MP meet the auxiliary circle in Q and Q, theangle QCQ is a right angle. Now take a rectangular piece of card or paper andmark on two adjacent edges beginning with the com-mon corner lengths equal to the minor and majoraxes. By turning the card round C mark correspond-ing points… … Fig. 72. 253« Points on the curve may also be easily deter-mined by the application of the following property ofthe conic sections. The focal distance of a point on a conic is equal 126 GEOMETRIC EXERCISES to the length of the ordinate produced to meet thetangent at the end of the latus rectum.…
Geometry -- Study and teaching · Paper work
Internet Archive · University of Toronto, Robarts Library · Public Domain Mark 1.0. Free to use for anything.
