How many shapes fit into a circle?

Answer 1

An infinity of shapes fit into a circle. All regular polygons can be circumscribed by a cirlcle, as well as all irregular shapes, drawn with straight or curved lines.

Answer 2

Infinite shapes can fit into a circle. This is because a circle can be considered a 2D surface and there are an infinite number of possible shapes that can be created within that surface, such as triangles, squares, pentagons, and so on.