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