Squaring the Rectangle - Calculator

The unit is the same for lengths, width and perimeter. The area has this unit squared. For example, length in centimeters, area in square centimeters. The area of ​​a rectangle is calculated as length times width. A square is a special type of rectangle where the length and width are equal. Therefore, the area of ​​a square is length times length, or length to the power of two, or length squared. The perimeter of a rectangle is twice the length plus twice the width. For a square, the perimeter is four times the edge length. The diagonal is the straight line between two opposite vertices. Its length is calculated using the Pythagorean theorem. The diagonal of a rectangle is always longer than that of a square with the same area.

Example: square and rectangle with the same area. The square has an edge length of 150 pixels, the rectangle has 300 to 75 pixels, so it is twice as long and half as wide. There are a total of 22500 pixels for each. A pixel is already a unit of area, so it is not squared.