Use the information provided to answer Part A and Part B. A rectangle is 1 3 in. 1 7 in. Part A A student uses square tiles measuring 1 inch on each side to find the area of the rectangle. Her reasoning is shown. I covered the top and bottom edges of the rectangle with 7 tiles each. I then covered the left and right edges with 3 tiles each. I added up all the tiles I used to get a total area of 20 square inches. 7 + 7 +3+3= 20.​