Solve triangle ABC. Round side lengths and angle measures to the nearest tenth when necessary.b = 2, c = 4, A = 80°

A. a ? 3.1, B ? 71.4°, C ? 28.6°
B. a ? 4.1, B ? 28.6°, C ? 71.4°
C. a ? 4.1, B ? 71.4°, C ? 28.6°
D. a ? 5.1, B ? 28.6°, C ? 71.4°


Answer: B

Mathematics

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