Respuesta :
To map Triangle DEF onto Triangle GHJ, a transformation is needed to be done.
Congruent triangles
Two triangles are said to be congruent if they have the same shape and their corresponding sides are congruent. Hence all the three sides and three angles are congruent.
Triangle D E F is shifted down and to the right to form triangle G H J. Hence to map Triangle DEF onto Triangle GHJ, a transformation is needed to be done.
Find out more on Congruent triangles at: https://brainly.com/question/1675117