(Solved): a. Your sister uses a cardboard square and the lines of her eyesight to align the top and bottom of ...

a. Your sister uses a cardboard square and the lines of her eyesight to align the top and bottom of the rock wall. The horizontal measure from her to the rock wall is 13 feet 5 inches, while the vertical distance from the ground to her eyes is 5 feet 6 inches. What method is she using to approximate the height of the rock wall? Use this method to approximate the height of the rock wall.