How many different rectangles can be made with 45 identical square tiles?

Answer 1

Oh, dude, let me break it down for you. So, you can make a rectangle with 1 tile, 3 tiles, 5 tiles, and so on up to 45 tiles. That's like, 23 different rectangles in total. But hey, who's counting, right?

Answer 2

Assuming that you have to use all the rectangles, you have a few options:

1. 1x45
2. 3x15
3. 5x9

Therefore, you are able to make three different rectangles.