[中學] 幾何
三角形ABC中 ∠C=90度 D在BC邊上 使BC:CD:AC=3:2:1 求∠ABC+∠ADC
位置大概是 A
C D B
想很久想不出來,有請高手
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※ 編輯: sam81819 來自: 125.232.76.139 (07/02 14:07)
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