Question

Distance of the point (α, β, γ) from y-axis is

Answer 1

If we draw a perpendicular from (α, β, γ) to y-axis, the foot of the perpendicular will have the coordinates (0, β, 0)

Also, by distance formula, we have distance between two points

A(x₁, y₁, z₁) and B(x₂, y₂, z₂) is