set mode to parametric
set angles to degrees


H=6
L=6
A=45
t=1


X1=(-H+t*cos(A))/(L+t*sin(A))
Y1=3/(L+t*sin(A))

X2=(-H+t*cos(A))/(L+t*sin(A))
Y2=4.7/(L+t*sin(A))

X3=(-H+t*cos(A))/(L+t*sin(A))
Y3=(sqrt(3^2-(t-3)^2)-1)/(L+t*sin(A))

X4=(-H+t*cos(A))/(L+t*sin(A))
Y4=(sqrt(3^2-(t-10)^2)-1)/(L+t*sin(A))

X5=(-H+t*cos(A))/(L+t*sin(A))
Y5=(sqrt(3^2-(t-17.5)^2)-1)/(L+t*sin(A))

X6=(-H+t*cos(A))/(L+t*sin(A))
Y6=(sqrt(1.4^2-(t-1.5)^2)+3)/(L+t*sin(A))

X7=(-H+t*cos(A))/(L+t*sin(A))
Y7=(sqrt(1.4^2-(t-4.5)^2)+3)/(L+t*sin(A))

X8=(-H+t*cos(A))/(L+t*sin(A))
Y8=(sqrt(1.4^2-(t-7.5)^2)+3)/(L+t*sin(A))

X9=(-H+t*cos(A))/(L+t*sin(A))
Y9=(sqrt(1.4^2-(t-10.5)^2)+3)/(L+t*sin(A))

X10=(-H+t*cos(A))/(L+t*sin(A)) 
Y10=(sqrt(1.4^2-(t-13.5)^2)+3)/(L+t*sin(A))

X11=(-H+t*cos(A))/(L+t*sin(A))
Y11=(sqrt(1.4^2-(t-16.5)^2)+3)/(L+t*sin(A))

X12=(-H+t*cos(A))/(L+t*sin(A))
Y12=(sqrt(1.4^2-(t-19.5)^2)+3)/(L+t*sin(A))



plot
X1,Y1 
X2,Y2 
X3,Y3 
X4,Y4 
X5,Y5 
X6,Y6 
X7,Y7 
X8,Y8 
X9,Y9 
X10,Y10 
X11,Y11 
X12,Y12


//%#<--good luck