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a+b-c Law of Cosine Cos= 2ab A- 4m B-3m C-3.5m 4-32-5.5 Cos= =-0.21875 2(3)(4) -0. e- 21875) 180 cos(0.21875) COS 6- 102.6
a+b-c Law of Cosine Cos= 2ab A- 4m B-3m C-3.5m 4-32-5.5 Cos= =-0.21875 2(3)(4) -0. e- 21875) 180 cos(0.21875) COS 6- 102.6
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