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橢圓3-平行四邊形法
Author:
30張婷淯
GeoGebra
New Resources
三半圓間的相切圓(Codex╱2026.10.07)
幾何作圖題：切三圓（題目）
直角坐標平面上的旋轉變換
Earth with coastline
算柱 (兩位數)
Discover Resources
正方形和長方形有甚麼特性？
vector addition and subtraction
比較角的大小一
shuangquxian
三角形的心的副本
Discover Topics
Probability
Tangent Function
Circumcircle or Circumscribed Circle
Hypergeometric Distribution
Upper and Lower Sum or Riemann Sum