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The top documents tagged [law of sines substitute]
9.6 Apply the Law of Cosines In which cases can the law of cosines be used to solve a triangle? What is Heron’s Area Formula? What is the semiperimeter?
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EXAMPLE 1 Solve a triangle for the SAS case Solve ABC with a = 11, c = 14, and B = 34°. SOLUTION Use the law of cosines to find side length b. b 2 = a
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Warm Up Find each measure to the nearest tenth. 1. my2. x 3. y 4. What is the area of ∆XYZ ? Round to the nearest square unit. 60 square units 104° ≈
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