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八年级数学竞赛之比例线段
Author:
王俊辉
拖动点G，研究位置变化及关系
详见题目
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Blue Globs
Forum 62 43223 A trimmedIntersectLines
Euler Line Part 1
Untitled
On your Own: Reflect over two parallel lines
New Resources
SEMICIRCLE
Conic Section Explorations
HEXAGON
Reflection - class game
Transformations of Parabolas
