Need help with a math problem

[Darkie]

I'm having some trouble with this, and I'm sure it is fairly simple, but this is the problem:

To find the distance AB across a river, a distance BC = 429 m is laid off on one side of the river. It is found that B = 103.6° and C = 14.6°. Find AB.

Honestly, I don't even really know where to start. The 'laid off on one side of the river' confuses me. But any help would really be appreciated, thanks.

[WzWz]

Law of Sines.

[AeroJonesy]

It's a triangle problem. See if you can draw the triangle.

[Gibbzilla]

My best math days are beyond me. :wink:


Numbers make my head swell.

[DurfBarian]

"B" means angle ABC, and "C" means angle BCA. Lookie here:

http://homepage.mac.com/durf/pix/river-problem.png

[Darkie]

Ahh, it was that simple. Thanks a lot guys. I got it now.

[Dondrei]

I didn't really get the "laid off on" part either, I just guessed what they meant.