The area of a Rectangle when length and diagonal are given is defined as the total region enclosed by the perimeter of the rectangle with a given length and diagonal and is represented as Al sqrt d2- l2 or AreaLength sqrt Diagonal2- Length2. Using the Pythagorean theorem. How To Find The Diagonal of a Rectangle.
If you have only the area and width you can use the same equation to solve for the area.
ABD is and AMB is m. Diagonal of a Rectangle DiagonalofaRectanglesqrtl2b2. For example if the length is 8 inches and the diagonal is 10 inches the formula would be. A w l Perimeter of a rectangle P 2 w 2 l Circumcircle radius of a rectangle r d2.