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Question 3
Author:
Shum Kwok Ching
,
GeoGebra Institute of Hong Kong
Topic:
Area
GeoGebra
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兩組對邊相等和有直角的四邊形
四邊形的特性
兩位數除以一位數（二）
第八周作业
三位數除以一位數（一）
Discover Resources
Area of rectangle
鉛筆畫圓
多边形对角线
Copy of 費氏螺旋 (試算表)
三角形的內心
Discover Topics
Isosceles Triangles
Inequalities
Parallelogram
Right Triangles
Polygons