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 29
Fig. 9. the mid-points of the remaining sides and is at rightangles to those sides. Take any point on this line,fold through it and the two corners of the square which IO GEOMETRIC EXERCISES are on each side of it. We thus get isosceles trianglesstanding on a side of the square. 23. The middle line… … Fig. 10. its distances from two comers of the square are equalto a side of it, we shall obtain an equilateral triangle(Fig. 10). This point is easily determined by turningthe base AB through one end of it, over A A, until theother end, B, rests upon the middle line, as at C.26. Fold the equilateral…
Geometry -- Study and teaching · Paper work
Internet Archive · University of Toronto, Robarts Library · Public Domain Mark 1.0. Free to use for anything.
