Suppose the dimensions of some rectangles and squares were measured in kilometers. which statements are true? choose all answers that are correct. (points : 1) a)a rectangle with a length of 4n2 km and width of 5n km has an area of 20n3 km2. b)a rectangle with a length of 4n3 km and width of 5n3 km has an area of 20n9 km2. c) a square with side length of 5n4 km has an area of 25n8 km2. d) a square with side length of 3n5 km has an area of 9n25 km2.