Imagine that we have 3 points $P_1,P_2$ and $P_3$. $P_1,P_2,P_3$ creates a plane in 3D space. Let's say the plane equation is $Ax+By+Cz+D=0$. How can I find the roll, pitch, yaw angles of this plane? $R(r,p,y)=R_z(y)R_y(p)R_x(r)$ order or any other order. Roll angle for the rotation angle around the $x$ axis. Pitch angle for the rotation angle around the $y$ axis. Yaw angle for the rotation angle around the $z$ axis.
Note: I tried to find the normal vector (normal vector $n=Ux+Vy+Wz$) of the plane. Is this useful to use this normal vector? For example; the $x$ axis vector is $v_x=[1,0,0]$. Does it help to find the dot product of normal vector and $x$ axis vector? Therefore, I can find the arccos of this dot product vector, and find angle between those two vectors. But this is not one of the roll,pitch,yaw angles. However, I wanted to ask if it helps to find and use the normal vector of the plane.