2011武汉中考数学12题怎么做（就是第三问）BG=6GF

2024-12-25 17:42:50

推荐回答（2个）

回答1：

AB=BD，又是菱形，可以知道菱形是两个正三角形构成的，AE=DF，所以问题一对
这个是选择题，代数字最简单，你假设E和F都是中点，就可以算出问题二也对
问题三你可以当结论背下来了，可以用余弦定理硬算

回答2：

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