Triangle ABC maps to A′B′C′ as shown. Triangle ABC has vertices A at (1, 6), B at (8, 10), and C at (8, 3). A second triangle has vertices A' at (1, -6), B' at (8, -10), and C' at (8, -3). Is triangle ABC congruent to triangle A′B′C′? Why, or why not?
a) Yes, because a rotation is a rigid transformation.
b) Yes, because a reflection is a rigid transformation.
c) No, because a rotation is not a rigid transformation.
d) No, because a reflection is not a rigid transformation.
