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# 11. Three Dimensional Geometry

# Three Dimensional Geometry Class 12 Maths

**Ashish Kumar**

Direction cosines and direction ratios of a line joining two points. Cartesian and vector equation of a line, coplanar and skew lines, shortest distance between two lines. Cartesian and vector equation of a plane. Angle between (i) two lines, (ii) two planes, (iii) a line and a plane. Distance of a point from a plane.