Solve the triangle. Round lengths to the nearest tenth and angle measures to the nearest degree. B = 15° C = 113° b = 49
2 answers:
Answer:
A = 52°, a = 149.2, c = 174.3
Step-by-step explanation:
Technology is useful for this. Many graphing calculators can solve triangles for you. The attachment shows a phone app that does this, too.
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The Law of Sines can give you the value of c, so you can choose the correct answer from those offered.
c = sin(C)·b/sin(B) = sin(113°)·49/sin(15°) ≈ 174.271 ≈ 174.3 . . . . . third choice
<u>Answer:</u>
A = 52°, a = 149.2, c = 174.3
<u>Step-by-step explanation:</u>
We are given the following two known angles and one known side length for a triangle and we are to find the rest of the side lengths and angle:
B = 15° C = 113° b = 49
A = 180 - ( 15 + 113) = 52°
For finding the side lengths, we can use the sine rule:


a = 149.2


c = 174.3
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