Answer:
29
Explanation:
The answer is "29" or the second option.
[tex]ST=13[/tex]
[tex]RS=16[/tex]
[tex]13+16=29[/tex]
[tex]RT=29[/tex]
Three is way too small of a number to be the answer to the length of this line so the only answer that makes since is 29. (if there is more then 2 options feel free to let me know)
Hope this helps
