Quadrilateral h' is the image of quadrilateral h after a sequence of transformations. if quadrilateral h' is congruent to quadrilateral h, which transformations could have been used? a dilation by a scale thator of 2 followed by a reflection a rotation followed by a dilation by a scale factor of 3 a reflection, a translation of 1 unit left, and then a dilation by a scale factor of 3 a translation of 6 units down, a rotation, and then a reflection