See attached image.
Starting from point E, count 4 units, and you reach the point F. This is the length of the rectangle.
From F, count 2 units towards the right, and you reach the point G. Draw a line. This is the height of the rectangle.
Complete the rectangle by going 4 units upward from G to H and then 2 units to the left to reach E.
EFGH is a rectangle with length = 4 units and height = 2 units with a vertex at E