There are 2025 rectangles in a 9x9 grid.
That depends on how big the rectangles are.
441
14
Oh, dude, let me count... Okay, so in a 5 by 6 grid, you've got like 15 horizontal rectangles and 10 vertical rectangles, but don't forget the big one that covers the whole grid, so that's like 26 rectangles total. So, like, yeah, there you go.
9
There are 2025 rectangles in a 9x9 grid.
That depends on how big the rectangles are.
96 rectangles.
4 rectangles
441
225
9 total. 4 1x1 2 1x2 2 2x1 1 2x2
62 x 38 = 2356 rectangles
36
90
14