Question 4
Circle $\left(O\right)$ has radius $1 , M$ lies on it, and circle $\left(K\right)$ has diameter $MO$. A line meets the circles at four distinct ordered points $A , B , C , D$, with $A , D$ on $\left(O\right)$ and $AB = BC = CD$. Find the distance from $O$ to the line.