A need a hand analytical calculation. For the bar structure according to the picture, it is necessary to hand calculate the reactions at the supports and the stresses in the bars. The used method is analytical $.$Based on the solution, sketch the deformed shape of the structure.

$F=180kN$

$A=2150m{m}^2,E=200000\frac{N}{m}{m}^2$

$a=0,7m,b=1,5m,c=1,3m$