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2006-5-21
Approximation of equiangular spiral by a series of quarter arcs
060520a2_worksheet.ggb
060520a3_worksheet.ggb

Materials from my sites can be downloaded from the following links as a zipped folder.
http://homepage.mac.com/msalee/mathbook.zip/
http://homepage.mac.com/msalee/imath.zip/
Last update on July 8, 2006.
 
From circling to surfing
060512a1_worksheet.ggb
Point of division
060518a1_worksheet.ggb
Ratios in right triangles
060522a1_worksheet.ggb