# Side of the square

A square is a regular quadrilateral, that is, a quadrilateral in which all angles are equal and all sides are equal. A square is both a special case of a rhombus and a rectangle. It is also a two-dimensional hypercube. In a square, the lengths of all sides and angles are equal.

**Find the length of the side of the square through the area**

**Square area S**

**Find the length of the side of the square through the diagonal**

**Diagonal of the square d**