About: http://webisa.webdatacommons.org/131049556

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	Also, when the perimeter remains the same, the area may not be the same, such as in the case of figures c and d.
http://www.w3.org/ns/prov#wasQuotedFrom	pbs.org