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Question 4
Author:
Shum Kwok Ching
,
GeoGebra Institute of Hong Kong
Topic:
Area
GeoGebra
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兩組對邊相等的四邊形
球体的体积推导（优化版）
拼砌四邊形
柱體建築師
【案例】2013年安徽高考15题
Discover Resources
「分點」平行四邊形
百分數：折扣、盈利與虧損
分割平行四邊形長方形
黃金矩形
Angles in a Circle:Property 2
Discover Topics
Ratios
Frequency Distribution
Constructions
Geometric Transformations
Sequences and Series