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周界與面積
Author:
Cychoy
Topic:
Area
GeoGebra
New Resources
正方形雪花图案
百分數及其應用
常见四边形是否是双心四边形
中华人民共和国国旗
撒针估算面积实验
Discover Resources
GGB動畫-會有圖案
內心
測試
摺正三角形
纏繞畫2
Discover Topics
Constructions
Real Numbers
Upper and Lower Sum or Riemann Sum
Hypothesis Testing
Coordinates