Stage 28 · Solid Geometry & Views · 28.7All lessons →
Stage 28 · Solid Geometry & Views

28.7 Perpendicularity in Space: Tests and Properties

Master the tests and properties of perpendicularity for line-to-line, line-and-plane, and plane-and-plane along with the key angles, completing the pure-geometry approach and connecting to the vector method ahead.

6 knowledge points
Knowledge point pages
28.7.1 Tests for Perpendicular Lines and a Line Perpendicular to a Plane28.7.2 Property of a Line Perpendicular to a Plane28.7.3 Dihedral Angles28.7.4 Tests and Properties of Perpendicular Planes28.7.5 Distance and Perpendicularity Combined28.7.6 Toward the Vector Method
eastmath.com · 28.7 Perpendicularity in Space: Tests and Properties