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» » » » Post: Law of cosine/sine
|Posted by nemmymath at Sep 1, 2010 10:21:57 PM|
Law of cosine/sine
Find the requested information using the law of cosines and/or the law of sines. Round to three decimal places.
A triangle has sides a = 4 and b = 2 and angle C = 50°. Find the length of side c.
I tried using Law of cosine:
Am not sure if I was doing it right. Thanks for your help.