Given any triangle abc with corresponding side lengths a, b, and c, the law of cosin states

The Law of cosines equation varies depending on the information that is given.
a²= b² + c² - (2)(b)(c)cos A
b²= a² + c² - (2)(a)(c)cosB
c² = b² + a² - (2)(b)(a)cosC
The lower case letters are the side lengths while the capital letters are the angle measures.

221,500 is the answer

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