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劉德晧proof14
Author:
郭亮偉
GeoGebra
New Resources
判斷球體
四邉形 (四年級) 教師版
第八周作业
兩組對邊相等的四邊形
球体的体积推导（优化版）
Discover Resources
TESTTT
柱體體積(三角形)
孟氏定理 (Menelaus' theorem)
與三個半圓相切的圓不規則區域著色
正六邊形串珠
Discover Topics
Parametric Curves
Square
Cone
Exponential Functions
Bar Chart or Bar Graph