Permutations and combinations - is square a rectangle?

[AdityaDev]

I was going through a p and c problem where I had to find the number of non congruent RECTANGLES.
Answer includes number of squares as well.
SHOULD SQUARE BE TAKEN AS A RECTANGLE?

 

[HallsofIvy]

Yes, a square is a special kind of rectangle.

Of course, I cannot guarantee that whoever set this problem will agree with me!