Answer:
8
Step-by-step explanation:
Transformation is the movement of a point from its initial location to a new location. Types of transformation are reflection, rotation, dilation and translation.
Translation is the movement of a point up, down, right or left on the coordinate plane. Rigid transformations are transformations that preserve the length and angle of the object, types are reflection, rotation and translation.
Triangle ABC is translated, since translation is a rigid transformation, the length would still be preserved, hence:
AB = A'B' = 8
