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Thébault's Theorem
作者:
Guillermo Bautista
主題:
平行四邊形
,
正方形
Given any parallelogram, construct on its sides four squares external to the parallelogram. The quadrilateral formed by joining the centers of those four squares is a square.
GeoGebra
Reference:
https://twitter.com/fermatslibrary/status/1645120156194992128
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