<svg viewBox="0 0 100 100">
    <path d="M90 50 C90 72.091 72.091 90 50 90C27.909 90 10 72.091 10 50C10 27.909 27.909 10 50 10C72.091 10 90 27.909 90 50" />
</svg>

Why should I use a path to approximate a circle, when the <circle> element exists?This is intended as a base for animations. I wanted to dent a circle which is only possible if it is a path.