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根據百分率找數量（一）: 例3
Author:
GeoGebra Institute of Hong Kong
Topic:
Percentages
GeoGebra
New Resources
四邊形的特性
找出對稱軸
近似值：有效數字
【案例】2018年全国1卷理科12题
四邉形 (四年級) 教師版
Discover Resources
垂足三角形
Sequence指令練習(逐一套疊正方形)
王宇揚2
两圆上两动点分别以相同的线速度运动时，连线中点的轨迹（绿色花朵）
長方形的周界與長和闊的關係 (學生版)
Discover Topics
Hypothesis Testing
Integral Calculus
Cuboid
Parallelogram
Circumcircle or Circumscribed Circle