as we can see from the graph coordinates of point C are (2,2) and coordinates of point C' are (7,4)
So by distance formula CC' will be
[tex]\begin{gathered} \text{length of cc'=}\sqrt[]{(7-2)^2+(4-2)^2}^{} \\ =\sqrt[]{25+4} \\ =\sqrt[]{29} \end{gathered}[/tex]So length of CC' is
[tex]\sqrt[]{29}[/tex]