如图，已知AE＝AC/5，CD＝BC/4，

如图，已知AE＝AC/5，CD＝BC/4，BF＝AB/6，那么等于'p3M7`0Q9G)N2f5{0G2\1N.X1Q)D。5O-y'p(W7O0t7m7D

　                                                                                                              　5O-y'p(W7O0t7m7D