You know that the angle done by the 4 stick (say theta) will always be half the angle done by the 2 stick (say 2 theta).

x = x center of circle + x position will respect to center of cercle

x = 4 cos(theta) + 2 cos(2 theta)

y = y center of circle + y position will respect to center of cercle

y = 4 sin(theta) + 2 sin(2 theta)

Do drawing it will help you.