Law of Sines. In addition to using the law of cosines, you can also use the . law of sines. in order to find the measures of sides or angles in non-right triangles. 5) In , a = 12, sin A= 0.6, and sin B = 0.9. Find b. 6) In , , , and the side opposite the vertex B is 7. Find the length of the side opposite vertex A. (Leave answer in exact form ...
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law of cosine and sine