The Length of a rectangle is twice the with the area of the rectangle is 90 square units know that you can divide the rectangle into two squares which number represents the length of each side of the Squares

Look at the figure below: triangle abc is a right triangle with angle abc equal to 90 degrees. the length of ac is 5 units and the length of ab is 4 units. d is a point above c. triangle adc is a right triangle with angle dac equal to 90 degrees and dc parallel to ab. what is the length, in units, of segment cd?