Question

the triangles are congruent by sss. which transformation(s) can be used to map one triangle onto the other? select two options. reflection only translation only dilation, then translation rotation, then translation rotation then dilation

Explanation:

Congruent triangles have the same shape and size. A reflection flips a figure over a line, a translation slides a figure, a rotation turns a figure, and a dilation changes the size of a figure. Since the triangles are congruent, we cannot use dilation as it changes size. We can use reflection to flip one triangle to match the other, and we can use rotation - then - translation to re - orient and move one triangle to map onto the other.

Answer:

reflection only
rotation, then translation