November 29, 2015

Homework Help: trigonometry

Posted by lindsay on Thursday, May 3, 2012 at 10:27pm.

In the triangle ABC, the sides AB and BC have lengths 7cm and 8cm respectively, and angle B is obtuse. the area of the triangle is 14 root 3 cm^2. Find
a.The size of angle B
b. The length of AC

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