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正弦定理与余弦定理练习
正弦定理与余弦定理 · 1–12
用正弦定理或余弦定理求解，结果精确到十分位。
1.a = 5, b = 8, C = 108°c ≈
2.a = 7, b = 11, C = 137°c ≈
3.a = 17, b = 8, C = 41°c ≈
4.a = 13, b = 14, C = 82°c ≈
5.a = 10, b = 8, C = 41°c ≈
6.a = 9, b = 12, C = 64°c ≈
7.a = 6, b = 9, C = 96°c ≈
8.a = 17, b = 23, C = 83°c ≈
9.a = 24, b = 5, C = 66°c ≈
10.a = 8, b = 19, C = 95°c ≈
11.a = 23, b = 12, C = 52°c ≈
12.a = 17, b = 11, C = 60°c ≈
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