Liam and tehya are trying to determine whether δabc and δefd can be proven congruent through rigid motions. liam says that δabc ≅ δefd because δabc can be reflected over the y-axis to create δefd. tehya says that δabc ≅ δefd because δabc can be rotated 90° clockwise about the origin to create δdef. a coordinate grid with triangles abc and def at a at negative 7 comma 2, b at negative 3 comma 6, c at negative 2 comma 1, d at 2 comma 1, e at 3 comma 6, and f at 7 comma 2 who is correct? liam only tehya only both liam and tehya neither liam nor tehya