Why objects are jagged?

I am using acer aspire 7 laptop.With 8gb ram ryzen 5 cpu and nvdia gtx 1650 gpu.when i place a 3d object,it’s curved line become jagged. Who can i fix it?
It’s not looking good.

Hi @apranto41
I am assuming you mean to say Anti-aliasing, which is available with Unity’s Quality settings. Generally, the Editor scene view will not antialias what it sees because there is not really any point. It would just overwork the video card for no reason. Instead, Anti-aliasing is limited to game view, where it is intended to be appreciated.