Câu 4: Trang 56 - sách giáo khoa (SGK) Toán tiếng anh lớp 4:a) Draw a rectangle ABCD with length AB...

The edges of the rectangles that are parallel to side AB are sides AD and BC. These edges are parallel to AB because they are opposite sides of a rectangle.

The names of rectangles formed in this case are ABCD and MNOP. ABCD is the original rectangle, while MNOP is the rectangle formed by connecting points M and N.

The equilateral quadrilateral formed by connecting the points M and N is a rectangle. The rectangle formed by connecting M and N is the same as rectangle ABCD.

The midpoint M of the side AD can be found by measuring 2cm from point A along the line AD. The midpoint N of the side BC can be found by measuring 3cm from point B along the line BC.

To draw a rectangle ABCD with length AB = 6cm and width AD = 4cm, you need to first draw a straight line AB that is 6cm long, and then draw another straight line AD that is perpendicular to AB and 4cm long.