The length of the sides of the rectangle

A rectangle is a quadrilateral with all angles equal to 90 degrees.

Find the side length of a rectangle by knowing the diagonal and the side

Diagonal of a rectangle d
Side of the rectangle a

Find the length of the side of a rectangle knowing the perimeter and side

Perimeter of a rectangle P
Side of the rectangle a

Find the side length of a rectangle knowing the area and side

Rectangle area S
Side of the rectangle a