NCERT Solutions for Class 12 Maths Chapter 11 Three Dimensional Geometry Miscellaneous Exercise

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NCERT Solutions for Class 12 Maths Chapter 11 Three-dimensional Geometry Miscellaneous Exercise is covered in this article. This exercise of Chapter 11 is based on Direction Cosines and Direction Ratios of a Line, Equation of a Line in Space, Angle between Two Lines, Shortest Distance between Two Lines, Plane, Coplanarity of Two Lines, Angle between Two Planes, Distance of a Point from a Plane, Angle between a Line and a Plane. NCERT Solutions for Class 12 Maths Chapter 11 will carry a weightage of around 7-14 marks in the CBSE Term 2 Exam 2022. NCERT has provided a total of 23 problems and solutions based on the important topics of the exercise.

Download PDF NCERT Solutions for Class 12 Maths Chapter 11 Integrals Miscellaneous Exercise 

NCERT Solutions for Class 12 Maths Chapter 11: Important Topics

Important topics covered in the Three-dimensional Geometry Chapter are:

  • Angle between two lines
  • Plane
  • Angle between line and plane
  • Angle between two vectors
  • Coplanarity

Also check: NCERT Solutions for Class 12 Maths Chapter 11 Three-dimensional Geometry 

Other Exercises Solutions of Class 12 Maths Chapter 11 Three-dimensional Geometry

Chapter 11 Three-dimensional Geometry:

CBSE Class 12 Mathematics Study Guides:

CBSE CLASS XII Related Questions

  • 1.
    Let both $AB'$ and $B'A$ be defined for matrices $A$ and $B$. If the order of $A$ is $n \times m$, then the order of $B$ is:

      • $n \times n$
      • $n \times m$
      • $m \times m$
      • $m \times n$

    • 2.
      If \( \overrightarrow{a} + \overrightarrow{b} + \overrightarrow{c} = 0 \), \( |\overrightarrow{a}| = \sqrt{37} \), \( |\overrightarrow{b}| = 3 \), and \( |\overrightarrow{c}| = 4 \), then the angle between \( \overrightarrow{b} \) and \( \overrightarrow{c} \) is:

        • \( \frac{\pi}{6} \)
        • \( \frac{\pi}{4} \)
        • \( \frac{\pi}{3} \)
        • \( \frac{\pi}{2} \)

      • 3.
        Find the probability distribution of the number of boys in families having three children, assuming equal probability for a boy and a girl.


          • 4.
            Let \( 2x + 5y - 1 = 0 \) and \( 3x + 2y - 7 = 0 \) represent the equations of two lines on which the ants are moving on the ground. Using matrix method, find a point common to the paths of the ants.


              • 5.
                Let $|\vec{a}| = 5 \text{ and } -2 \leq \lambda \leq 1$. Then, the range of $|\lambda \vec{a}|$ is:

                  • [5, 10]
                  • [-2, 5]
                  • [-1, 5]
                  • [10, 5]

                • 6.
                  Evaluate: $ \tan^{-1} \left[ 2 \sin \left( 2 \cos^{-1} \frac{\sqrt{3}}{2} \right) \right]$

                    CBSE CLASS XII Previous Year Papers

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