Final answer:
To construct a rectangle with RI = 4cm and ID = 6cm, draw a line segment of length 4cm and another line segment of length 6cm. Connect the endpoints to form a rectangle. Verify that the opposite sides are parallel and equal in length by measuring the sides and checking for equality.
Step-by-step explanation:
To construct a rectangle with RI = 4cm and ID = 6cm, start by drawing a line segment of length 4cm and label it as side RI. Then, draw another line segment of length 6cm perpendicular to RI and label it as ID. Connect the endpoints of RI and ID to form a rectangle.
To verify that the opposite sides are parallel and equal in length, measure the lengths of the sides: RI and ID should be equal in length, and the distance between the other two pairs of parallel sides should also be equal.