An intuitive explanation of formula about the distance of a point to a plane in 3D – math.stackexchange.com

Suppose we have a point $Q(x_0,y_0,z_0)$ and a plane $Ax+By+Cz+D=0$, we have the formula of the distance from the point to the plane $D_{dist}=\frac{|Ax_0+By_0+Cz_0+D|}{\sqrt{A^2+B^2+C^2}}$ it can ...