That's an infinite list.
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All shapes have sides. Including a circle which has one curved side.
They all have sides, and they are all shapes.
It's a quadrilateral
A shape can have one side, as in a circle or an ellipse; and there are no limits to the maximum number of sides a polygon can have.
There are infinitely many shapes and not all of them have names.
There are infinitely many 2d shapes. They can have 1 side (a circle or ellipse) to infinitely many. They can have sides that are straight or not, the sides can be equal or unequal in length, the angles can be equal or unequal, etc.
They are called regular polygons
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1
There are infinitely many 2d shapes so it is impossible to list them all.
It depends on the 5 shapes. If they are all identical squares (with sides of length s), then simply lay them side by side and you will get a (s by 5s) rectangle.