Answer:
The entire volume would be 60m, but if it's talking only about the little rectangle on top then the answer is 6m.
Explanation:
The length of the smaller object is 1m, the height is 2m, and the width is 3m (as seen to the right side near the bigger block).
Multiply all those numbers together (1×2=2, 2×3=6 or just simply 1×2×3=6)