The figure shows a triangular park ABC. The area DEFC is cordoned off by putting barricades on the sides DE and EF.
What is the total length of the barricades DE and EF?
a. 36 feet
b. 90 feet
c. 108 feet
d. 120 feet

Question

The figure shows a triangular park ABC. The area DEFC is cordoned off by putting barricades on the sides DE and  EF.
    What is the total length of the barricades DE and EF?
a.    36 feet 
b.   90 feet 
c.   108 feet 
d.   120 feet

anonymous · Answer

here

atlas · Answer

DE // CF right?? So elementary geometry shall tell you that the Ratio AD:DC = AE:EB  
You can get the value of DC from here and DC=EF right??

atlas · Answer

And then EF//CD................so go through the same process again and find CF