In three-dimensional geometry the yz-plane consists of all points where the x-coordinate is zero. Its equation is given by x = 0. Any point on this plane is represented as (0 y z). The yz-plane is perpendicular to the x-axis and is useful in representing three-dimensional objects and transformations.
Class 12 Maths Chapter 11 Three Dimensional Geometry is vital for CBSE Exam 2024-25. It covers direction cosines and direction ratios of a line equations of a line in different forms shortest distance between two lines equations of a plane angles between planes and the distance of a point from a plane.
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The yz-plane is defined by the equation x = 0, meaning that for any point on the yz-plane, the x-coordinate is 0.
The distance of a point (α, β, γ) from the yz-plane is the absolute value of its x-coordinate because the yz-plane is perpendicular to the x-axis.
Therefore, the distance of the point (α, β, γ) from the yz-plane is:|α|
Thus, the correct answer is: |α|
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