[i]A circular disc rolls along the inside edge of a circle with double its radius. What is the locus of an arbitrary point on the face of the disc?[/i]
Interactive worksheet.
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This is problem #48 of Heinrich Dorrie's [i]100 Great Problems of Elementary Mathematics.[/i]
Note: GGB does not acknowledge Locus[] for P, given by the moving point. I tried three ways with no luck. If you know why, please drop me a line. I'm stumped.
