About: http://webisa.webdatacommons.org/125189363

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	If a = (n + 1)b where n is an integer, then the length of the epicycloid is 8nb and its area is ??b2(n2 - n).
http://www.w3.org/ns/prov#wasQuotedFrom	st-and.ac.uk