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畢氏定理：證明
Author:
Anthony OR 柯志明
,
Steve Phelps
拖拉滑杆，看看黃色部份的面積。 a, b 和 c 有甚麼關係？
GeoGebra
Acknowledgement: Adapted from "
Proof Without Words
" by
Steve Phelps
.
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