Is there a way to figure the size square you need for the rectangle you are using? say the rectangle is 2x5. I know one side of smaller piece would be 2, what about the other side. Sorry, know this is kinda stupid question, but I am very math challenged. I want to place a row of flying geese along side a block and I can figure the size of rectangles I need to make it as long as the block but the other part is eluding me, especially when rectangle is not in exact inches.