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 96
Catalans Thtoremes etProblemes de Gfometrie Elimentaire. IN PAPER FOLDING 11 diameter through one of the points of section A andthe mid-point 0 of the opposite arc. Let the pointsof section on each side of the diameter be named A\, A2, A3 A„, and A\, A2, Ad A,t beginning next to A. Then OAy OA2-… … 143. Let us first take the pentagon.By theorem iv, OAlOA2 = JP.By theorem i, R{OAx— OA2)= OAx • OA2 JP. 78 GEOMETRIC EXERCISES ... OA1—OA2 = R. .-. 0A1=~(V/Z + 1), and C?^2=^(i/5 — l). Hence the following construction. Take the diameter A CO, and draw the tangentAF. Take D the mid-point of the…
Geometry -- Study and teaching · Paper work
Internet Archive · University of Toronto, Robarts Library · Public Domain Mark 1.0. Free to use for anything.
