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GeoGebra
PMC 2009-10 Q5
Author:
Arthur Lee
題目五
在圖中，可移動A、B、C、D點改變藍色四邊形的大小和形狀。試把四邊形ABC變成一個矩形，大小為24個紅色三角形，然後記錄AB和BC的長度。
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