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 Sujet: angle measures
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 Angle measures 2012-03-21 jogiboy pose la question :how can i get the sine theta if the given is 3.14/3Penny Nom lui répond. A quadrilateral with 4 known sides and 1 known angle 2010-03-19 samuel pose la question :Name: Samuel Status: Student I have a quadrilateral with 4 known sides and 1 known angle, and I'm trying to evaluate the other angles of my quadrilateral. By the law of cosines, I can easily find my opposite angle (using the diagonal as a basis for the equation). However, to find the two remaining angles, I have found no other way so far than to use the other diagonal, which can be found with the equation attached (from geometry atlas). Is there any simpler way?Robert Dawson and Harley Weston lui répond.

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