The rule (x, y)→(−x,−y)(x, y)→(−x,−y) maps △rst△rst to △r′s′t′△r′s′t′.

which statement correctly describes the relationship between △rst△rst and △r′s′t′△r′s′t′ ?

the triangles are congruent because △r′s′t′△r′s′t′ is a translation of △rst△rst , and a translation is a rigid motion.

the triangles are congruent because △r′s′t′△r′s′t′ is a rotation of △rst△rst , and a rotation is a rigid motion.

the triangles are not congruent because △r′s′t′△r′s′t′ is a rotation of △rst△rst , and a rotation is not a rigid motion.

the triangles are not congruent because △r′s′t′△r′s′t′ is a translation of △rst△rst , and a translation is not a rigid motion.