Newer and Newer Spirals - Open and Shut Cases

I n the March 2017 issue, Khushboo Awasthi had described an investigation of the familiar Square Root Spiral, which had taken her along unexpected paths filled with mathematical discoveries. At the end of the article, she posed some questions for the reader to investigate and we did just that! We share our bonanza of findings with you, and as usual, the tasks are arranged from Low Floor to High Ceiling. This time, we include some investigations with the free dynamic geometry software GeoGebra; regular constructions with compass and ruler will do the job just as well!

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