This question here was closed because it's "not a real question".
My understanding of the situation is that actually it is a real question (I'll elaborate on this) but Zeynel doesn't know the jargon (like "piecewise smooth") we get taught in classes. I think it is self destructive to just throw out all these sorts of people (ones without formal training). I would like this site to be a much more open environment.
Now I think that this is actually a real question, and infact it is a mathematically important one. There is a famous paradox about staircases being longer than straight lines even though it looks like they converge to the same curve - this sort of issue is a bit subtle, I would say it lives in analysis.
I would like also to second what whuber said:
Let's be a little generous and perhaps offer assumptions needed for this to have a meaningful interpretation and to be true, recognizing that it comes from a non-mathematician seeking help. E.g., "all piecewise differentiable curves are rectifiable."
and quote what Bill Thurston said on his MO profile:
I enjoy questions that seem honest, even when they admit or reveal confusion, in preference to questions that appear designed to project sophistication