Square Area Calculator tool is used to calculate area, perimeter and length of the diagonal of a square.
A square is a kind of rectangle, and the perimeter of any rectangle is the sum of its four sides. Since all sides of a square are the same, perimeter=4a
The area of a square is equal to any one of its sides times any other: a * a . Since that's the same as s squared, area=a2
To find the length of the diagonal of a square, multiply the length of one side by the square root of 2.