Segment Length Ef047C

1. **Problem Statement:** We are given a shape consisting of a large blue rectangular prism with a smaller white rectangular prism on top. A dashed segment labeled $l$ is on the top face of the upper prism, and a horizontal dimension line labeled 4.87 m is below the lower prism. 2. **Understanding the Problem:** The segment $l$ likely represents a length on the top face of the smaller prism. The 4.87 m dimension is the length of the base of the larger prism. 3. **Assumptions and Formula:** If the problem is to find the length $l$ or relate it to the 4.87 m, we need more information such as the dimensions of the prisms or the relationship between $l$ and the base length. 4. **Conclusion:** Since the problem only provides the length 4.87 m and the segment $l$ without further details or a question, we identify that $l$ is a segment on the top face of the smaller prism, and the base length is 4.87 m. No calculation can be performed without additional data or a specific question.