About: http://webisa.webdatacommons.org/119680603

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	To find when the surface area is a minimum, we need to find dS/dr .dS = 4pr - 4000p
http://www.w3.org/ns/prov#wasQuotedFrom	mathsrevision.net