# NCERT Solutions Class 11 Maths Chapter 12 Exercise 12.1 Introduction to Three Dimensional Geometry

NCERT Solutions for Class 11 maths Chapter 12 exercise 12.1 Introduction To Three Dimensional Geometry explains that if any three planes intersect at a point ‘O’ in such a way that they are mutually perpendicular to each other, then these planes tend to intersect along the x, y, and z-axis. This is well-illustrated in the chapter with the help of diagrams for the students to understand the visual aspect of it. These axes make the rectangular coordinate system which is made up of XY-plane, YZ-plane, and the ZX-plane. The NCERT solutions Class 11 maths Chapter 12 exercise 12.1 consists of 4 questions of which 3 are fill in the blank form while the rest are also short answer kinds.

The three coordinate planes mentioned above divide the space into eight parts, referred to as the octants. This section further will help the students explore how any given point in space is addressed with the help of three coordinates using this fixed coordinate system consisting of coordinate axes, coordinate planes, and the origin. One thing to remember here is that the sign of the coordinates of a point help in finding the octant in which the point lies. The Class 11 maths NCERT solutions Chapter 12 exercise 12.1 Introduction To Three Dimensional Geometry in a scrollable PDF format is given below :

**☛** Download NCERT Solutions Class 11 Maths Chapter 12 Exercise 12.1

**Exercise 12.1 Class 11 Chapter 12 **

### More Exercises in Class 11 Maths Chapter 12

- NCERT Solutions Class 11 Maths Chapter 12 Ex 12.2
- NCERT Solutions Class 11 Maths Chapter 12 Ex 12.3
- NCERT Solutions Class 11 Maths Chapter 12 Miscellaneous Exercise

## NCERT Solutions Class 11 Maths Chapter 12 Exercise 12.1 Tips

NCERT solutions Class 11 maths Chapter 12 exercise 12.1 Introduction To Three Dimensional Geometry requires students to have a firm understanding of the coordinate geometry in two planes; only then they will get a better grasp on the concepts of three-dimensional space. The students must visualize three-dimensional geometry through practical examples for which they can take help from the teachers if required.

NCERT solutions Class 11 maths Chapter 12 exercise 12.1 has visually appealing diagrams for children to understand the reference being made to three-dimensional space. The students should also try drawing those diagrams to get practice on how the coordinates of any point are located in space.

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