Let be the three sides of a triangle , and let

, be the angles opposite them. If ,

find

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- Mar 31st 2008, 10:46 AMperashthree sides of a triangle
Let be the three sides of a triangle , and let

, be the angles opposite them. If ,

find

- Apr 1st 2008, 08:22 AMwingless
Huh.. that was long..

First thing I thought about this equation was the law of cosines. We'll use it later as expected.

Let's start of with reducing this.

As ,

Law of sines tell us that

From here we get and .

By using them,

It's simple enough now. Time to find by the law of cosines..

By the law,

We got now. By using it,