Answer:
it’s still 42 centimeters :3
Explanation:
this is kind of a trick question. These are transformations that don’t change the shape‘s size such as rotations and translations. Dialations change the shapes size but because in this problem it’s on reflections and translations, you can easily say that the perimeter is still 42 centimeters.
hope this helped :3
:3 byeeeeeeeeeeee