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Mathematics 13 Online
OpenStudy (anonymous):

Can someone help me find the length of a missing side to a triangle?

OpenStudy (anonymous):

Do you know the Cosine Rule?

OpenStudy (anonymous):

no. I was supposed to find the area of the triangle and the length of the missing side. I found the area. which is 700units^2. not sure how to find the length of the missing side.

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