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Back to Prove Laws of Sines and Cosines — Problem 1 · Task Set 23

Exercises: Prove the Laws of Sines and Cosines

Grade 10·21 problems·~35 min·Common Core Math - HS Geometry·standard·hsg-srt-d-10
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Fluency Practice

1.

In triangle ABCABC, angle A=30°A = 30\degree, angle B=50°B = 50\degree, and side a=10a = 10. Use sin⁡(30°)=0.5\sin(30\degree) = 0.5 and sin⁡(50°)≈0.766\sin(50\degree) \approx 0.766. Find side bb. Round to the nearest tenth.