About: http://webisa.webdatacommons.org/35528592

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	It is understood that an acute angle is an angle of less than 90??? and that acute angles are "substantially the same if they fall into a range of not greater than 10???.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com