Example. Find a real-life composite area. It must not be an area made up by you. It must be a real area. The area must be a composite. It can't be a simple area. In other words, it can't be a rectangle, a triangle, a circle, etc.
Take its measurements of the composite area and also a picture. Then establish x and y axes and determine the location the centroid of the area. Submit your work (including the photo and all your calculations) .