
CE为角平分线。AE = Y*X/(8+X)且AE=EC。三角形ADC与三角形CDE相似
Y/X = 8/EC=8/AE, 即得 Y^2 = 8*(8+X)。

CE为角平分线。AE = Y*X/(8+X)且AE=EC。三角形ADC与三角形CDE相似
Y/X = 8/EC=8/AE, 即得 Y^2 = 8*(8+X)。
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