Analysis: If the left side is the initial figure, it can be seen from the figure that the orientation of the figure in the initial and final state is exactly the same, so as long as a straight line is drawn between two points corresponding to the orientation in the two figures, it is "displacement", and its translation direction (from the initial point to the end point) is as shown in the following figure.
In the figure, the translation distance measured directly by the triangular plate is 3.7 cm, that is, 37 mm.