Hi all… long time no hear.. and not because I’m deaf.
I’ve got a 5-sided figure and need to know what the size would be of one particular edge if any of the other sides had their length changed. Is there some sort of formula available? Happy to play with trig if needed, sin cos and tan strike no fear in me.
Here’s the shape and dimensions:

I know how big the side is right now, but will need to work out what the size of the angled line will be if any other side was adjusted. Is this possible? And if so, how would it be calculated?