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旁心
Author:
Louis，Hong
GeoGebra
New Resources
第八周作业
正方形雪花图案
龙形曲线-分形龙2
科赫雪花
百分數及其應用
Discover Resources
垂心
五上_分數乘法(教師版)
直角坐标
三角形面積公式B2
纏繞畫未完
Discover Topics
Upper and Lower Sum or Riemann Sum
Orthocenter
Geometric Transformations
Coordinates
Integers