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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 56

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 56
Fig. 30. 81. If R be the radius of the circumscribed circle, 1 R= 0 AB. 82. If r be the radius of the inscribed circle,r=] - -^^ = 0.433.. ..XAB. -A IN PAPER FOLDING 37 83. The area of the hexagon is 6 times the area ofthe triangle HGO, „ AB i/3 4 43l/3 AB. 8 ^^2 = 0.6495.. ..XAB*. Also the hexagon… … Fig. 3i- 84. Fig. 30 is an example of ornamental foldinginto equilateral triangles and hexagons. 85. A hexagon is formed from an equilateral tri-angle by folding the three corners to the center. The side of the hexagon is 1 of the side of theequilateral triangle. 38 GEOMETRIC EXERCISES The area of…

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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