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东莞2018-10改编
Author:
yiyi
GeoGebra
New Resources
拼砌四邊形
第八周作业
判斷球體
長方體平面投影 (Codex版)
算柱 (兩位數)
Discover Resources
三角形面積與內切圓半徑
Quiz on Compass Bearings 羅盤方位角：測驗
面積
S6G2用随机法来估算圆周率Pi
Estimating the Mean
Discover Topics
Linear Regression
Rectangle
Solids or 3D Shapes
Cosine
Quadrilaterals