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直角三角形斜邊上的高小於斜邊的一半
Author:
chihchengliang
GeoGebra
New Resources
兩組對邊相等的四邊形
兩位數加法
兩組對邊相等和有直角的四邊形
球體建築師
球体的体积推导（优化版）
Discover Resources
仿生獸
圓周 (圖形B)
旋轉指令
PA + PB
学习资源介绍
Discover Topics
Statistics
Definite Integral
Trigonometric Functions
Variance
Volume