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congruent (AAS) 3
Author:
Ricky Chan
New Resources
no.1
办毕业 证学历扣薇374936141，
办理日本毕业 证扣/薇374936141学历认证留信网认证，使馆认证，回国人员证明
错觉平行线
Template: Symmetry04
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蝴蝶線ggb
ｔｏ郁捷
外心直角三角形
正交基底：四維三個向量
圓錐截痕
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Cone
Trigonometry
Reflection or Reflexion
Quadrilaterals
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