Answer:
Perimeter of quadrilateral
will be

Explanation:
Given quadrilateral
is a reflection of quadrilateral
over the line
.
So, all the corresponding sides of both the quadrilateral should be equal.
Also, we can see from the diagram that

As both image are reflection of same scale we can add corresponding sides.
So, the perimeter of
will be

And we have

Now, perimeter of
will be

Perimeter of quadrilateral
is
