In the image below, the bottom layer is fully covered by unit cubes.The total volume of the base is 162 m3.The total volume of the middle layer is  m3.

To address the problem, we will follow the steps outlined:

1. Break Down the Problem

• We know the total volume of the base layer is $V_{\text{base}} = 162 \, \text{m}^3$.
• We need to determine the total volume of the middle layer.

2. Relevant Concepts

• The volume of a rectangular prism (or layer) can be calculated using the formula: $V = \text{Base Area} \times \text{Height}$
• We will assume the middle layer also follows a similar structure, but we need additional information to proceed.

3. Analysis and Detail

• Without specifics about the dimensions or height of the middle layer, we can't compute its volume.
• If the middle layer's dimensions or its height relative to the base are known, we can apply the volume formula provided above.

4. Verify and Summarize

• As no additional details have been provided about the middle layer, we cannot reach a definitive conclusion about its volume.

Final Answer

It is not possible to determine the total volume of the middle layer without specific dimensions or additional information. If you provide those details, I can assist in calculating the volume.