Question

triangle def is congruent to △ghj by the sss theorem. which rigid transformation is required to map △def onto △ghj? dilation reflection rotation translation

Explanation:

A rigid - transformation preserves the size and shape of a figure. Dilation is not a rigid - transformation as it changes the size of the figure. Reflection flips a figure over a line, rotation turns a figure around a point, and translation slides a figure. Since the two congruent triangles \(\triangle DEF\) and \(\triangle GHJ\) seem to be in the same orientation just in different positions, a translation is required to map one onto the other.

Answer:

translation