Rolling Regular Polygons around a Circle - (1) Polygonal Epicycloid

(n = 5, k = 3)

(n = 3, k = 5/2)

(n = 6, k = 3/2)

(n = 4, k = 1/2)

n = the number of sides of the rolling polygon

a = the radius of the base circle

r = the circumradius of the polygon

(n = 3, k = 12/5)

( Mathematical software used: GeoGebra )


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