GeoGebra application : I recently found, when engaging in visualization process, if we express the hypotenuse r of a right triangle, as the area of a rectangle, with conventional sides , length l and breadth b, then one of the legs x is given as the rectangular area, whose length is determined by (l - 2) and breadth (b) and the other leg y is given as the rectangular area, whose length is squareroot of (l - 1) and breadth (2b).