Link slider to both angle and segment length
I'm stuck and would be grateful for a couple of pointers. I can link a slider to the length of a segment AB and, separately, I can link a slider to the angle ABC where B is an acute angle. However, I can't seem to do both at the same time. I want to slide the angle ABC and slide the length of the segment BC, with 2 different sliders. I also want to add another angle as BCD and slide the length of the segment CD. Seems so simple but to a newbie its a mountain to climb. Grateful for any approach. It's a suspension mechanism I am trying to visualise. I am a very infrequent user of Geogebra (Geometry) but LOVE the app. Thanks in advance.