【难度系数】★★★☆☆
【答案评析】部分考生苦于“条件不足”,不知道各边长的确切值。其实依题意,2AC=3AB,不妨假设AC=3,AB=2.
设正方形AFED的边长FE=x。△BFE∽△BAC,
答案选D
SAT数学考试知识点解析汇总 | |
【难度系数】★★★☆☆
【答案评析】部分考生苦于“条件不足”,不知道各边长的确切值。其实依题意,2AC=3AB,不妨假设AC=3,AB=2.
设正方形AFED的边长FE=x。△BFE∽△BAC,
答案选D
SAT数学考试知识点解析汇总 | |
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