Use the segment tool to draw a rectangle with a length of 4 units and a height of 2 units. one of the sides of the rectangle falls on
line ef
, and the rectangle has a vertex of e.

each segment on the grid represents 1 unit.

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