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Right, Acute and Obtuse Triangles
作者：
iarkan
主題：
角度
,
Pythagoras or Pythagorean Theorem
,
三角形
Move point C to observe the realtionship among angles and d=a^2+b^2 and e=c^2.
GeoGebra
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探索主題
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直線
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線段
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