
請教一題高中幾何,謝謝消失

請問大大們,這一題要如何下手,目前只推出應該是平行四邊形!謝謝
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推
09/19 12:11, , 1F
09/19 12:11, 1F
→
09/19 12:12, , 2F
09/19 12:12, 2F
→
09/19 12:13, , 3F
09/19 12:13, 3F
→
09/19 12:24, , 4F
09/19 12:24, 4F