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Chord and tangent
作者：
Ian Dickerson
GeoGebra
最新資源
bewijs stelling van Pythagoras
Damped Trochoidal Curve
Viviani's Curve
Slope and Road Signs
Slope Between 2 Points (Phase 2)
探索資源
Iteration cobweb
Ex. 3: No.5 on pg. 77
Kites
Rotation around a line
探索主題
3D 向量（三維）
垂心
微積分
特殊點
反射