Answer:
Step-by-step explanation:
Rigid transformation:
Translation, reflection and rotation are the example rigid transformation, in which size and shape of a figure doesn't change after the transformation.
Image A'B'C'D' will be exactly same as original trapezoid ABCD shown in the figure attached.
∠B ≅ ∠B'
∠A ≅ ∠A'
AB = A'B' = 6 units
CD = C'D' = 4 units