Homework Help: trigonometry ?

Posted by deborah on Tuesday, March 16, 2010 at 11:51am.

A cottage under construction is to be 15.6m wide. The two sides of the roof are to be supported by equal rafters that meet at a 52 degree angle. Determine the length of the rafters to the nearest cm using a) the cosine law b) the sine law
I am not understanding this question at all. please help. thanks.

trigonometry ? - deborah, Wednesday, March 17, 2010 at 10:17am
please help

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