∆abc has vertices at a(12, 8), b(4, 8), and c(4, 14). ∆xyz has vertices at x(6, 6), y(4, 12), and z(10, 14). ∆mno has vertices at m(4, 16), n(4, 8), and o(-2, 8). ∆jkl has vertices at j(14, -2), k(12, 2), and l(20, 4). are congruent. a is a single rigid transformation that maps the two congruent triangles.