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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 76

An illustration from T. Sundara Row's geometric exercises in paper folding. Edited and rev. by Wooster Woodruff Beman and David Eugene Smith, 1901, leaf 76
ular hyperbola (3). * Ibid., p. 207. IN PAPER FOLDING 57 HARMONIC SERIES. 115. Fold any lines AR, PB, as in Fig. 42, P be-ing on AR, and B on the edge of the paper. Foldagain so that AP and PR may both coincide with PB.Let PX, PY be the creases thus obtained, X and Ybeing on AB. Then the points A,… … 116. Having given A, B, and X, to find Y: fold anyline XPand mark ^corresponding to B. Fold AKPR,and BP. Bisect the angle BPR by PY by foldingthrough P so that PB and ./Iff coincide.Because XP bisects the angle APB,.-. AX: XB = AP: BP,= AY: BY. 58 GEOMETRIC EXERCISES 117. AX: XB = AY: BYor AY— XY:…

Geometry -- Study and teaching · Paper work

Internet Archive · University of Toronto, Robarts Library · Public Domain Mark 1.0. Free to use for anything.

More pictures from T. Sundara Row's geometric exercises in paper folding. Edited and rev. by Wooster Woodruff Beman and David Eugene Smith

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