Answer:
To determine the missing length of the cuboid's net, we can use the fact that the net represents a three-dimensional shape when folded along the edges.
In this case, the missing length corresponds to the length of the cuboid, which is the longest dimension. To find this length, we can look for a pair of sides on the net that align with each other. These sides would be opposite sides of the cuboid's length.
From the given net, we can see that the 9 cm and 4 cm sides are opposite each other when folded. Therefore, the missing length (cuboid's length) is also 9 cm.
Explanation: By identifying the opposite sides on the net, we can determine which sides of the cuboid align with each other when folded, allowing us to find the missing length.