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Conditions for Similarity of Triangles (1) 相似三角形的判別條件(1)
Author:
Alex CHIK
Topic:
Triangles
GeoGebra
gMath 互動數學教室
http://www.gmath.hk
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Бодлого 2
Kepler's Ellipse : on the Complex Number Line
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Question 3.b.
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