http://i111.photobucket.com/albums/n...k/Picture1.gif

Find the lengths of BF and CF?

i have found that BF is 4779 i now need to know how to find CF:confused:

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- Dec 1st 2006, 08:16 AMzak_killcity14@hotmail.cofinding length in truss
http://i111.photobucket.com/albums/n...k/Picture1.gif

Find the lengths of BF and CF?

i have found that BF is 4779 i now need to know how to find CF:confused: - Dec 1st 2006, 09:06 AMSoroban
Hello, Zak!

Quote:

Find the lengths of BF and CF.

i have found that BF is 4779 ... i now need to know how to find CF.

We need repeated applications of the Law of Sines.

In triangle

. .

. .

Then: .

In triangle

. .

. .

Then: .

Finally: .

Therefore: .