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ex 9
Author:
LAM YU SANG
GeoGebra
New Resources
第八周作业
四邊形的特性
拼砌四邊形
兩位數除以一位數（二）
算柱 (兩位數)
Discover Resources
立體幾何
Line Perpendicular to Plane 垂直於平面的直線
藝術著色
正弦公式(證明)
第四次:20190308
Discover Topics
Poisson Distribution
Similar Triangles
Isosceles Triangles
Vectors
General Quadrilateral