Move the points in the grafic or define the point coordinates in the numeric field.
Properties of the rectangle
The opposite sides are equal. The opposite sides are parallel. The diagonals halve each other. All angles have 90°.
Crcumference of the rectangle
With the side length a = AB = CD and b = BC = DA is the circumference:
Area of the rectangle
With the side length a and b is the area:
Diagonal length of the rectangle diagonals
With the side length a and b is the diagonal length given by: