Which type of transformation is shown? T
s
S'
R
R'
T'
Q'
a
b
С О СО
reflection
rotation
dilation
translation
с

Reflection

If you flip the top rectangle over downwards, the results you would get will be the same as the rectangle shown underneath.
The Q and R would switch places, and T & S would switch places.

Think about the reflection of your hands. (I don’t know if you could see that emoji... if you can’t, just place your hands side ways. It’s a reflection of one another)