The side of a square is 2 whole 2/5 m less than its perimeter.Find the area of the square

Find using the equation the length of the side of this square.

We denote by x the length of the side of this square.

In the condition of the problem it is said that the side of the square is 2 2/5 m less than its perimeter, which is 2.4 m, therefore, we can draw up the following equation:

4x = x + 2.4.

We solve the resulting equation the length of the side of this square:

4x – x = 2.4;

3x = 2.4;

x = 2.4 / 3;

x = 0.8 m.

Knowing what the length of the side of a given square is equal to, we find its area:

0.8 * 0.8 = 0.64 m ^ 2.

Answer: the length of the side of this square is 0.64 m ^ 2.