Answer: Reflection
Explanation:
When we look at the picture, the two rectangles QRST and Q'R'S'T' appears as the mirror images of each other , also the corresponding sides and angles are congruent.
The transformation that create a mirror image of the figure is known as reflection. It is a rigid transformation because it produces congruent shapes.
Therefore, the transformation maps rectangle QRST to rectangle Q'R'S'T' is reflection.