What are some methods for calculating point positions in a geometric chassis?

[SteveJK]

Hi,

I'm trying to calculate the position of the points from a struture like the picture attached. This is a mechanic structure that consist on 3 triangles (blue, orange and green), i know all the triangles sides lengths and also their angles (and some more colored in green). My objective is to find the spatial position (x, y coordinates) of any the points of the structure.

I tried to solve it using sinus and cosinus methods, but i can't find the solution because i always crash with the M distance because it is unknown. I tried another methods but without success...

Any suggestion or method to try?
Thanks!

 

[SteveJK]

Hi again, i also tried thinking like circumferences, and finding their crossing points.