Final answer:
The provided information does not contain enough context to a determine the length of RS. Further details regarding the relationship of RS to the mentioned vectors or measurements would be needed to solve this problem.
Step-by-step explanation:
To find the length of RS, we need to examine the details provided to determine which information relates to vector RS. However, the provided snippets alone do not give enough context or information regarding vector RS directly. In problems like this, typically, one would use vector addition or subtraction, or apply the Pythagorean theorem in the context of a coordinate system if RS were the resultant or the difference of two vectors.
Based on the provided information, where a resultant R = 5.8 cm is mentioned in an example, and other various lengths are given for different scenarios, it's not possible to ascertain the length of RS without additional context regarding how RS relates to these other given vectors or measurements.