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Activity: The Perfect Triangle
This activity explores the construction and properties of an equilateral triangle in Euclidean, Spherical and Hyperbolic geometries. The authors would like to thank Elly Claus-McGahan, who contributed this activity.
Click here to open the Geometry Playground applet in a new window.
Click here to open a pdf file which contains the instructions for the activity.
Heath, Daniel and Joshua Jacobs, "Geometry Playground," Loci (September 2010), DOI: 10.4169/loci003567
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