 Hi and welcome to the session. Let us discuss the following question. The question says any point O inside triangle ABC is drawn to its vertices from a point D on AO. D E is drawn so that D is parallel to AB and E F is parallel to BC as shown in figure. Proof that D F is parallel to AC. Now this is the figure given to us and we have to prove that the solution information we are given O D by DA is equal to O E by the same ratio. This is parallel to BC proportionality theorem. That is one and this from one and two we get D by DA to O F by FC by FC therefore by converse of proportionality theorem. Hence we have proved that D F is parallel to AC. So this completes the session. Bye and take care.