True. This is because if RN¯¯¯¯¯¯¯¯ ≅ NT¯¯¯¯¯¯¯¯ and NS¯¯¯¯¯¯¯¯≅ LN¯¯¯¯¯¯¯¯, it means that both pairs of opposite sides of the quadrilateral are congruent. In a parallelogram, opposite sides are always congruent. Therefore, based on this information, the quadrilateral must be a parallelogram.
