SOLUTION: Can you please help me with this problem. Find the measue of the obtuse angle possibility for the triangle with the following dimensions: B= 38 degrees, b= 21, c= 25. A)47.13 deg

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Question 142684This question is from textbook Precalculus
: Can you please help me with this problem. Find the measue of the obtuse angle possibility for the triangle with the following dimensions: B= 38 degrees, b= 21, c= 25.
A)47.13 degrees
B)132.87 degrees
C)114.26 degrees
D)145.19 degrees
Thank you very much This question is from textbook Precalculus

Answer by stanbon(48535) (Show Source):
You can put this solution on YOUR website!
Find the measue of the obtuse angle possibility for the triangle with the following dimensions: B= 38 degrees, b= 21, c= 25.
A)47.13 degrees
B)132.87 degrees
C)114.26 degrees
D)145.19 degrees
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Use the Law of Sines:
Sin(C)/c = Sin(B)/b
Sin(C) = 25[sin(38)/21] = 0.73293...
Therefore C = 47.13 or 180-47.13 = 132.87
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I think your answer is "B".
Cheers,
Stan H.