I am trying to find equation (picture attached) in Cartesian form by using trigonometry which I want to plot in Matlab.
I have solved 4 points which are
\begin{align}(x_1=28.03&, y_1=19)\\ (x_2=28.03+3.9&, y_2=y_1)\\ (x_3=x2&, y_3=y_1+3.1)\\ (x_4=x_3+19\cos(\pi/2)&, y_4=y_3+19\sin(\pi/2)) \end{align}
but cant understand last two points $(x_5,y_5)$ and $(x_6,y_6)$. I have plotted first four points and it was perfect. The last two points I have tried but seems hard to me.
Would anyone please help me to solve the problem.