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2019初二春上第三讲第23题
Author:
wss86303511
GeoGebra
New Resources
画直线等分三角形的面积
找出對稱軸
兩位數除以一位數（二）
異分母分數減法
第八周作业
Discover Resources
「相似三角形」任务2
正五角錐(可以旋轉， 顯示邊， 選擇透視)
題4
locus
畫圓周範例檔
Discover Topics
Trapezoid
Solids or 3D Shapes
Set Theory
Polygons
Vectors 2D (Two-Dimensional)