(18 points) geometry assignment/ any help would be appreciated

Quadrilateral abcd in the figure below represents a scaled-down model of a walkway around a historic site. quadrilateral efgh represents the actual walkway. abcd is similar to efgh. what is the total length, in feet of the actual walkway?

Graph y = -|x| + 2. click on the graph until the correct one appears.

Math it's appreciated. (picture provided)