The length of side WX in Quadrilateral WXYZ is 3b units.
Coordinate plane
The distance between two points A(x₁, y₁) and B(x₂, y₂) on the coordinate plane is given by:
[tex]AB=\sqrt{(y_2-y_1)^2+(x_2-x_1)^2} [/tex]
Given the coordinates W(b, b), X(4b, b), Y(3b, 0), and Z(0, 0). The length of WX is:
[tex]WX=\sqrt{(b-b)^2+(4b-b)^2}=3b [/tex]
The length of side WX in Quadrilateral WXYZ is 3b units.
Find out more on coordinate plane at: https://brainly.com/question/26100648
