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Class XI Mathematics

Chapter 11: Introduction to Three Dimensional Geometry

Standard NCERT & CBSE aligned study curriculum. Master concepts, track accuracy, revise weak areas, and challenge yourself with 9 customized practice modes.

Example 1

3D Distance Solver

Find distance between points (1, -1, 3) and (2, 1, 1).
sin θcos θθ

Calculation Steps:

  1. 1Apply 3D distance formula.
  2. 2d = √[(2-1)² + (1 - (-1))² + (1-3)²].
  3. 3Calculation: √[1² + 2² + (-2)²] = √[1 + 4 + 4] = √9 = 3.
Solution3