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多邊形的切割與拼砌的副本
Author:
sui
,
spkwan
GeoGebra
modified by spkwan, uploaded 03 November 2011
GeoGebra
New Resources
錐體建築師
算柱 (兩位數)
【案例】2013年安徽高考15题
第八周作业
球體建築師
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clock
三角形，點上平分面積
蝴蝶定理动态演示
蚂蚁在长方体表面爬行的最短路径问题
等差数列、等比数列
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Fractal Geometry
Pythagoras or Pythagorean Theorem
Arithmetic
Straight Lines
Correlation