fuck it. The shapes are irrelavent. rather, any fraction of the circle can be traversed with going out on a tangent some to cover the parts of the circle you missed. I assume 3/4 of the circle is the peak where the path is the shortest. i reckon you need calculus, which i don't know, to find the magic number. I guess that's how you got the answer, cush, rather than using these gay shapes with geometry and trigonometry.