##### Introduction to Three Dimensional Geometry – Notes

**Introduction To Three Dimensional Geometry**

The coordinate space together with the coordinate axis is called the coordinate system.

The coordinate axes divide the coordinate space into parts, called octants.

Any point that lies on the X-axis will have its coordinates in the form (x, 0, 0).

Any point that lies on the Y-axis will have its coordinates in the form (0, y, 0).

Any point that lies on the Z-axis will have its coordinates in the form (0, 0, z).

Any point on the XY plane will be of the form (x, y, 0).

Any point on the YZ plane will be of the form (0, y, z).

Any point on the ZX plane will be of the form (x, 0, z).

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Class 11th Maths 12 - Introduction to Three Dimensional Geometry - Notes

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