# Area of a square

The area of a square, formula and the calculator for calculation of the area online. Formulas for calculation of the area of a square at various input datas are given.

1

## The area of a square through its party

a - side

... preparation ...

2

## The area of a square through its diagonal

d - diagonal

... preparation ...

3

## The area of a square through perimeter

P - perimeter
... preparation ...

4

## The area of a square through the piece which is carried out from square top to the middle of the opposite side

k - piece

... preparation ...

5

## The area of a square through an inradius

r - radius of inscribed circle

... preparation ...

6