Question

problem 9: spiral review for the pair of polygons, describe a transformation that shows polygon a is congruent to polygon b.

Explanation:

Step1: Identify the transformation type

Since the orientation of the polygons is the same and one is just vertically shifted from the other, it is a translation.
Let's assume each grid - square side is 1 unit. Count the vertical distance between corresponding vertices.

Step2: Determine the translation vector

By observing the vertical position of corresponding vertices of polygon A and polygon B, we can see that polygon A needs to be moved down 4 units to coincide with polygon B.
The translation can be described as (0, - 4) in a coordinate - based translation (where the first number represents horizontal movement and the second number represents vertical movement).

Answer:

Translate polygon A 4 units down.