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High School Geometry/Basics of Geometry
Reference material by Wikibooks contributors. This retains its source identity and is not 411 news reporting.
Basics of Geometry
../Points, Lines, and Planes/
../Segments and Distance/
../Rays and Angles/
../Segments and Angles/
../Angle Pairs/
../Classifying Triangles/
../Classifying Polygons/
../Problem Solving in Geometry/