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Heron formula
Author:
ralphchen
GeoGebra
New Resources
第八周作业3
第三周作业效果演示
龙形曲线-分形龙
第八周作业1
斐波那契螺旋弧线（表格法-可动态调节）
Discover Resources
乘法1
三角形，點上平分面積
線性組合
圓周 (圖形C) 的複本
一线三等角模型
Discover Topics
Logarithmic Functions
Percentages
Geometric Transformations
Sequences and Series
Statistical Characteristics