the answer is D.
I dont know how to add work for a question like this, however, I know how I'd show work....
Draw a graph and stick a point in the IV quadrant and label it "original". Then next to it, draw another graph and stick a point in the III quadrant and label it "reflection"
TIP: if you do that, make sure the points are in the same location in each quadrant
-3/4 because it's negative and also you can work it out by using rise/run
I believe the diagonals would be perpendicular. So if it's on a graph/coordinate plane the slopes would be opposite. And all the sides would be the same length/2 sets are parallel/same slope
We need more information to answer.
I hope this helps you
10^2=|aq|^2+5^2
100-25= |aq|^2
75= |aq|^2
aq= 5 square root of 3
this triangle 30-60-90