Question 30: Please help, which set of rigid motions could be used to show that triangle ABC is congruent to triangle DEF?

Answer:
The set of rigid motions could be used to show that triangle ABC is congruent to triangle DEF is " a horizontal translation and a vertical translation" ⇒ D
Step-by-step explanation:
∵ Δ DEF has the same direction as Δ ABC
∵ Δ DEF is congruent to Δ ABC
∴ The translation is using
∵ Δ DEF is right and below to Δ ABC
∴ There are horizontal and vertical translation
The set of rigid motions could be used to show that triangle ABC is congruent to triangle DEF is " a horizontal translation and a vertical translation"