What single transformation was applied to triangle A to get triangle B? *
Reflection
Translation
Rotation
Dilation

Answer: dilation
Step-by-step explanation:
the others are rigid transformations, they can’t change the size of the triangle
Answer:
Dilation is technically the answer, but it is alo a translation because it was moved down. Reflection and rotation do not work here because it asks for a single transformation. This means that is a went to b, then it could only get smaller.
^May sound a little confusing but feel free to ask questions if you don't understand it.