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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 112

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 112
smay be obtained as follows. Take any point 0 within the polygon, and drawOA, OB, OC,.... Take any point A in OA and draw AB, BC,CD, parallel to AB, BC, CD respectively. IN PAPER FOLDING. 93 Then the polygon ABCD.. . .will be similar toA BCD.. .. The polygons so described around a com-mon point are… … at right angles to AB on opposite sides and makeAC=BD. Draw CD cutting AB in P*. Then AP2= P2B. Now produce AC and take C£ = EF=FG.. .. = AC or BD. Draw DE, DF, DG cutting AB in Ps, Pt, P6,.... Then from similar triangles, P3B:AP3 = BD:A£. 94 GEOMETRIC EXERCISES .-. P3B: AB = BD: AF = 1:3.…

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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