Aabc has vertices at a(11,6), b(5,6), and c15, 17).
axyz has vertices at x(-10,5), y-12.-2), and 2-4, 15).
amno has vertices at m-9, -4), m(-3,-4), and 0-3, -15).
ajkl has vertices at (17,-2), k(12,-2), and l(12,7).
apqr has vertices at p12, 3), q.12,-2), and r(3,-2).
can be shown to be congruent by a sequence of reflections and
can be shown to be congruent by a single rotation.
translations.