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三角形內角和180度
Author:
范欣茹
Topic:
Triangles
GeoGebra
New Resources
找出對稱軸
國旗 (Claude 版)
三半圓間的相切圓(Codex╱2026.10.07)
Claude 解幾何題
美國國旗 (Codex, 2026.10.06)
Discover Resources
拋物線
二次函數的平移(基本)
三次函數圖形變化觀察
勝者即正義，可愛即正義～(可用Ctrl+滑鼠滾輪放大界面)
第三周作业效果演示
Discover Topics
Orthocenter
Vectors 2D (Two-Dimensional)
Trigonometric Functions
Geometric Transformations
Vectors