Without any given information or reference points on the diagram, it is not possible to determine the value of k.
I'm sorry, but I am unable to see the diagram you mentioned. Could you please describe the diagram or provide more information so that I can assist you in finding the value of k?
To find the value of k, we need more information or context about the diagram you mentioned. The diagram you provided did not show up in the text. Please provide a detailed description or additional information about the diagram so that I can help you find the value of k.
