About: http://webisa.webdatacommons.org/7191771

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	A Right Angle is an angle that measures 90 degrees, and is formed by two perpendicular lines.
http://www.w3.org/ns/prov#wasQuotedFrom	college-cram.com