Suppose the side of square measures 13 cm then its diagonal will be d s2 Diagonal Side square root of 2. B is the breadth of the rectangle. Diagonal of cube.
P and q are the diagonals.
D l² w². The perimeter of a rectangle is the sum of all the sides of the rectangle and is represented as P2 lsqrt d2- l2 or Perimeter2 Lengthsqrt Diagonal2- Length2. To find the length of the diagonal we can consider only the triangle and use the law of cosines to find the length of the unknown side. Given the side length of the square.