# NCERT Solutions for Class 12 Maths Exercise 11.1

NCERT Solutions for Class 12 Maths Chapter 11 Exercise 11.1 of 3-D Three Dimensional Geometry in Hindi Medium as well as English Medium free to download in PDF or use online. All the contents are updated for academic session 2020-2021 for CBSE and state board students who are following NCERT Books for their exams.

Videos related to Exercise 11.1 are also given in Hindi and English Medium free to use without any login or registration.## Class 12 Maths Chapter 11 Exercise 11.1 Solution for 2020-2021

Class: 12 | Mathematics |

Chapter: 11 | Exercise 11.1 |

Contents: | NCERT Solutions in Hindi and English Medium |

### CBSE NCERT Solutions for Class 12 Maths Exercise 11.1

Get here the NCERT Solutions for Class 12 Maths Chapter 11 Exercise 11.1 in PDF file format free to use. Solutions are updated for session 2020-2021 in Hindi and English Medium with videos also. All the contents are based on latest NCERT Books for Class 12 session 2020-2021.

### NCERT Solutions for Class 12 Maths Exercise 11.1 in Hindi and English Medium

### Class 12 Maths Chapter 11 Exercise 11.1 Solutions in Videos

#### Previous knowledge of 3-D Geometry

In Class XI, as we study analytical geometry in two dimensions and introduce three-dimensional geometry, we limit ourselves to Cartesian methods only. In class 12 Maths chapter 10, we have learned about some basic concepts of vectors. Now we will use vector algebra for three-dimensional geometry. The purpose of this approach to three-dimensional geometry is that it makes the study simple and elegant.

##### Three dimensional geometry in mathematics from class 12

In Mathematics Class 12, Chapter 11, we will study about the fundamentals of 3-D geometry like the direction cosine and direction relationship of a line joining two points and we will also discuss equations of lines and planes in different situations, the angle between two lines, two planes. , A line and a plane, the shortest distance between two oblique lines and the distance of a plane from a point. Most of the above results are obtained in vector form. However, we will also translate these results into Cartesian form, which sometimes presents a clear geometric and analytical picture of the situation.

###### Equation of a Line in Space

We have gone through the equation of lines in two dimensions in eleventh grade, now we will study vector and Cartesian equations of a line in space. A line is uniquely determined if (i) passes through a given point and is its given direction, or (ii) passes through two given points.

##### Which question is considered as important one from class 12 Maths exercise 11.1?

There are only 5 questions in exercise 11.1, based on simple concepts. Students should do all these questions to learn the concepts behind them. These concepts are required to solve questions in later on exercises.

##### What is the weightage of Exercise 11.1 of class 12 Maths?

The separate weightage of any exercise is not available but generally questions carrying one marks come from Exercise 11.1 of class 12 Maths.