The second transformation to map ∆ABC to ∆QRS is; Option A: a reflection across the line containing AB
We are told that;
The first transformation is a translation of vertex B to vertex R.
From the given image attached, we can see that;AB = QR
Now, since there is a translation of vertex B to vertex R, it means that there must also be a translation of vertex A to vertex Q.
Now, for this to be mapped properly, the second transformation will be to reflect ∆ABC across the line containing AB.
This is because reflection is like giving a mirror image of an object and since we want to map ∆ABC to ∆QRS successfully, then reflection about the line AB is the second transformation.
Read more about transformations at; https://brainly.com/question/12615525
