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 25
ners. 14. The two diagonals together divide the squareinto four congruent right-angled isosceles triangles,whose vertices are at the center of the square. 6 GEOMETRIC EXERCISES 15. Now fold again, as in Fig. 6, laying one sideof the square upon its opposite side. We get a creasewhich passes through… … Fig. 7. into two congruent rectangles, which are, therefore,each half of it; (5) each of these rectangles is equalto one of the triangles into which either diagonaldivides the square. 16. Let us fold the square again, laying the re-maining two sides one upon the other. The crease IN PAPER FOLDING 7…
Geometry -- Study and teaching · Paper work
Internet Archive · University of Toronto, Robarts Library · Public Domain Mark 1.0. Free to use for anything.
