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周界-平移法(教學練習一)
Author:
Choy Wai Yan
GeoGebra
New Resources
第八周作业
四邉形 (四年級) 教師版
長方體平面投影 (Codex版)
Nested spiral octagon
兩組對邊相等的四邊形
Discover Resources
分數加法
立體圖形的截面
三角形內心
軌跡 直線 (與兩平行線等距)
繪畫正方形
Discover Topics
Polygons
Sequences and Series
Ratios
Intersection
Statistical Characteristics