Answer: Translation.
Explanation:
Given: Triangle DEF is congruent to triangle GHJ by the SSS theorem.
We know that the corresponding parts of congruent triangles are congruent.
Thus, Vertex D in ΔDEF is corresponds vertex G in ΔGHJ.
Vertex E in ΔDEF is corresponds vertex H in ΔGHJ.
Vertex F in ΔDEF is corresponds vertex J in ΔGHJ.
We can see that there is equal distance between the corresponding points.
The rigid motion which moves a shape in a particular distance in same direction is known as translation .
Hence, the rigid transformation is required to map DEF onto GHJ is translation.