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 46
24 ; if the remoter point is taken 13squares are required, as in Fig. 25. 67. The puzzles mentioned in §§ 65, 66, are based upon the formulas 12 + 22 = 5 12 + 32 = 10 22 _|_ 32 = 13. IN PAPER FOLDING 27 The process may be continued, but the number ofsquares will become inconveniently large. 68.… … Fig. 25. 69. The given square may be cut into pieces whichcan be arranged into two squares. There are variousways of doing this. Fig. 23, in § 65, suggests thefollowing elegant method: The required pieces are(1) the square in the center, and (2) the four con-gruent symmetric quadrilaterals at the…
Geometry -- Study and teaching · Paper work
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