如图,某小组为了测量河对岸塔AB的高度在塔底部B的正对岸点C处,测得仰角∠ACB=30°.(1)若河宽BC是60米,求塔AB的高(结果精确到0.1米);(4分) (参考数据: ≈1.414, ≈1.732) (2
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![如图,某小组为了测量河对岸塔AB的高度在塔底部B的正对岸点C处,测得仰角∠ACB=30°.(1)若河宽BC是60米,求塔AB的高(结果精确到0.1米);(4分) (参考数据: ≈1.414, ≈1.732) (2](/uploads/image/z/5138381-29-1.jpg?t=%E5%A6%82%E5%9B%BE%2C%E6%9F%90%E5%B0%8F%E7%BB%84%E4%B8%BA%E4%BA%86%E6%B5%8B%E9%87%8F%E6%B2%B3%E5%AF%B9%E5%B2%B8%E5%A1%94AB%E7%9A%84%E9%AB%98%E5%BA%A6%E5%9C%A8%E5%A1%94%E5%BA%95%E9%83%A8B%E7%9A%84%E6%AD%A3%E5%AF%B9%E5%B2%B8%E7%82%B9C%E5%A4%84%2C%E6%B5%8B%E5%BE%97%E4%BB%B0%E8%A7%92%E2%88%A0ACB%3D30%C2%B0%EF%BC%8E%EF%BC%881%EF%BC%89%E8%8B%A5%E6%B2%B3%E5%AE%BDBC%E6%98%AF60%E7%B1%B3%2C%E6%B1%82%E5%A1%94AB%E7%9A%84%E9%AB%98%EF%BC%88%E7%BB%93%E6%9E%9C%E7%B2%BE%E7%A1%AE%E5%88%B00.1%E7%B1%B3%EF%BC%89%EF%BC%9B%EF%BC%884%E5%88%86%EF%BC%89+++++++++%EF%BC%88%E5%8F%82%E8%80%83%E6%95%B0%E6%8D%AE%EF%BC%9A+%E2%89%881.414%2C+%E2%89%881.732%EF%BC%89++++%EF%BC%882)
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