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最小周長
Author:
張丰耘
GeoGebra
New Resources
美國國旗 (Codex 版)
AI 訓練教室
四邉形 (四年級) 教師版
兩組對邊相等和有直角的四邊形
球體建築師
Discover Resources
Quiz on Partial Variation 部分變：測驗
數值滑桿
Classifying Quadrilaterals
BkD_act15_05c
线段
Discover Topics
Straight Lines
Equilateral Triangles
Optimization Problems
Trigonometry
Numbers