ANSWER:
MO
STEP-BY-STEP EXPLANATION:
To know the side corresponding to DH, we must rotate figure 2 in such a way that they have the same orientation.
The corresponding side is the one that would be in the same place in the figure, if they were in the same orientation, we do this and determine which side it corresponds to:
We can observe that the side corresponding to DH in figure 2 is the side MO
