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Introduce Tangent Ratio
Author:
VCChung
GeoGebra
New Resources
兩組對邊相等和有直角的四邊形
直角坐標平面上的旋轉變換
三位數除以一位數（二）
兩位數除以一位數（一）
算柱 (兩位數)
Discover Resources
多邊形
peacock3
直方圖_Demo
圓切三半圓
劉徽的「割圓術」的副本
Discover Topics
Equations
Hypothesis Testing
Orthocenter
Geometry
Line Segment