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Mathematics 7 Online
OpenStudy (anonymous):

In △DEF, what is the length of DF? A 54 B 18 sqrt of 5 C 27 sqrt of 2 D 9 sqrt of 3 /Users/Guest/Desktop/Screen shot 2012-11-14 at 11.48.43 AM.png

OpenStudy (anonymous):

I can't see the pic..

OpenStudy (anonymous):

is it a right triangle?

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