In △DEF, what is the length of segment DF?

Question

falco276 · Answer

attachment

falco276 · Answer

54

 18  radical 3

 27 radical 2

 9 radical 3

chihiroasleaf · Answer

have you learnt about trigonometric ratios in right triangle?

falco276 · Answer

um, kind of.

chihiroasleaf · Answer

can you complete this one? :) 
|dw:1358719606356:dw|

falco276 · Answer

no i can't

falco276 · Answer

@chihiroasleaf !

Y U NO GIVE ME A STRAIGHT ANSWER!!!!!!!!!!!!!

chihiroasleaf · Answer

this site is not supposed to give you the answer of your questions..., you will solve the problem with the help from the others... :)

falco276 · Answer

IDC
Just help me, Okay!?

falco276 · Answer

@chihiroasleaf 
look im sorry for being mean to you. Im just upset, that's all.
Feel free to become my fan, but i'll figure it out on my own. :)
Thx.

chihiroasleaf · Answer

Never mind... :)

well.., I'll give you hint :

in general |dw:1358720468030:dw|

now, apply this rule in your triangle to find the trigonometric ratios of angle F, and investigate which one you can use to find the length of DF..

falco276 · Answer

(sigh) okay.

falco276 · Answer

(troll face)
Too late! I submitted my work before you can help me!
TROLOLOLOLOLOLOLOL!!!!!!!!!!!

falco276 · Answer

I got the right answer.