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根據百分率找數量（一）:例1的副本
Author:
音节-Lisa
,
GeoGebra Institute of Hong Kong
GeoGebra
New Resources
判斷球體
兩組對邊相等的四邊形
兩組對邊相等和有直角的四邊形
長方體平面投影 (Codex版)
球體建築師
Discover Resources
Decimal
科博館的水畢氏三角
同心圓和線段-3(線段到最外圓有小圓)
大園寶
顶点在正方形对角线上的等腰三角形构成了一个等腰直角三角形
Discover Topics
Congruence
Random Experiments
Sine
Prism
Cosine