3.625 is the answer. Enjoy!
I think that the best answer here would be that A = 40 degrees.
5 2/3 is the answer to your question
Check whether it is possible to have a triangle with the given side lengths for example 7,9,13 then add any two sides and see if it is greater than the other side. Example the sum of 7 and 9 is 16 and 16 is greater than 13
It will move it from one section to another and make the x axis 4 units more to the right