Determine Whether the Law of Sines or the Law of Cosines

question 58

Multiple Choice

Determine whether the Law of Sines or the Law of Cosines is needed to solve the tri- angle. Then solve the triangle. $$a = 17 , b = 19 , C = 60 ^ { \circ }$$

• A) Law of Sines; \(A \approx 60 ^ { \circ } , B \approx 54.5 ^ { \circ } , c \approx 19\)
• B) Law of Sines; \(A \approx 54.5 ^ { \circ } , B \approx 60 ^ { \circ } , c \approx 19\)
• C) Law of Cosine; \(A \approx 54.5 ^ { \circ } , B \approx 65.5 ^ { \circ } , c \approx 18.08\)
• D) Law of Sines; No solution
• E) Law of Cosine; No solution

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