Identify the shapes and their dimensions.

The image displays a larger rectangle with dimensions labeled as 9 m and 4 m. Inside this larger rectangle, there is a smaller, empty rectangle. The space between the larger and smaller rectangle on the right side is labeled as 1 m, and the space on the bottom is partially visible and labeled as 3. The text '4 M' appears to be associated with the height of the larger rectangle, and '9 M' with its width. The width of the inner rectangle is not explicitly labeled, but its height appears to be part of the '4 M' dimension.