In Fig. 6.19, DE || AC and DF || AE. Prove that
Given thatIn triangle ABC, DE is parallel to AC
Therefore,
(Basic proportionality theorem)
Now, 
Therefore,
(Basic proportionality theorem)
5
In Fig. 6.19, DE || AC and DF || AE. Prove that
Given thatIn triangle ABC, DE is parallel to AC
Therefore,
(Basic proportionality theorem)
Now,
Therefore,
(Basic proportionality theorem)