Final answer:
The student could have drawn a trapezoid.
Step-by-step explanation:
The student could have drawn a trapezoid. In a trapezoid, all four sides can have different lengths. The trapezoid has two parallel sides called the bases, and the other two sides called the legs. The bases can have different lengths, and the legs can have different lengths as well.
For example, let's say the student drew a trapezoid with a shorter base of 8 units, a longer base of 12 units, and legs of 6 units and 10 units. In this case, all the sides have different lengths, and it fits the definition of a trapezoid.