draw an three circles in different styles

Hello,

Your question is not clear as you have not mentioned what exactly you mean by styles.

If we talk about it mathematically, circle is a locus of points that are equidistant from a fixed point. Hence, no matter at what angle or at what orientation you draw, it will look all the same.

In one sense, you can make styles in circles by circumscribing it inside a square, triangle etc.

In other way, you can use different art forms like dashed line and dotted line to make circles in different styles.

Hope this helps.

Thanks.