Step 1 : Firs we need to calculate the total angle of pentagon formed inside the star. The formula of total angle of a pentagon is 90x(2n-4) . One internal angle is {90x(2n-4)}/n . Thus putting the value of n=5 , we get internal angle as 108 0 . Step 2 : Therefore base angle of the highlighted triangle will be: 180 0 -108 0 = 72 0 . Step 3 : Therefore angle on the joint of the lines at second turn as shown in the diagram will also be 72 as shown in the image. Step 4 : Therefore the final command for making the star without crossing lines will be : repeat 5 [ fd 200 rt 144 fd 200 lt 72] ↵ That's all. If you have any problem in creating any shape with MSWLogo, then feel free to comment below.