Probably a trigonometry problem

Atmosk

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Jun 26, 2013
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Hello, first time posting here so if the question is in the wrong place (due to not being sure of the category of the problem), then sorry for that.

1080p mspaint illustration of the problem:

2hehati.png

The black lines are strings that contract 10% of their total length and each string is connected to the frame at the red points (contracting from the opposite free end).
Each string's (non-red) end is tied to the middle of another string so when the string contracts it pulls the string it is connected to.
What I would need to know is how much the 5th string would move from it's initial end point due to the 'deformations' as well as the 10% contractions. Also the endpoints only move along it's own line unless it would make it infinitely more complex.

I wasn't blessed with a great education so I only have very vague idea on how I should begin solving this problem but, naturally lacking the correct vocabulary for searching.
I don't need a solution to my question but, I would really appreciate some tips on what could help me with forming a equation for solving this.

Thank you in advance and this is purely for my own interest so I'm in no rush with this :)
 
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