Individual: Know_perpendicular_edges

http://www.inter2geo.eu/2008/ontology/GeoSkills#Know_perpendicular_edges

Know_perpendicular_edges commonName "connaître la perpendicularité entre arêtes" (fr)
Know_perpendicular_edges commonName "wissen, welche Ecken rechtwinklig sind" (de)
Know_perpendicular_edges created "2009-33-12 04:15:34"
Know_perpendicular_edges creator "1"
Know_perpendicular_edges modified "2009-37-12 09:27:38"
Know_perpendicular_edges hasTopic Edge
Know_perpendicular_edges hasTopic Perpendicular
Know_perpendicular_edges hasTopic Right-Prism
Know_perpendicular_edges type Know_in_geometry