o is a point in the interior of triangle ABC..show that 2(oa+ob+oc)(AB+BC+CA)

The figure  can be given as , 

But after this no information is given regarding relation between side AB, BC, CA and OA, OB, OC
SO we cannot further find any relation between 
$$\begin{gathered} \frac{2\left(\mathrm{OA}+\mathrm{OB}+\mathrm{OC}\right)}{\mathrm{AB}+\mathrm{BC}+\mathrm{CA}} \\ \mathrm{SO} \mathrm{kindly} \mathrm{recheck} \mathrm{your} \mathrm{question}. \end{gathered}$$