Question

Triangle DEF has vertices D(2, 2), E(4, 5), and F(1, 3), Triangle DEF is transformed to Triangle D’’E’’F’’ by a rotation of Triangle DEF 90 degrees clockwise about the origin followed by a reflection across the x-axis. Find the coordinates of the vertices of triangle D’’E’’F’’ and state whether or not the two triangles are congruent. Justify your answer.