國三數學跪求高手解答. 謝謝?

👨🏻‍🏫 學術台數學

2016-01-14 1:53 am

回答 (2)

2016-01-14 2:44 am

✔ 最佳答案

3AE = 2ED
AE/ED = 2/3
EF / FC = ED / BC = ED / (AE + ED) = 3 / (2 + 3) = 3/5 , 答(D).

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2016-01-14 9:56 am

C

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