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作者：
Michael Perry
GeoGebra
最新資源
Regular Polygons and Equivalent Triangles
Area of a Circle Illustrated
bewijs stelling van Pythagoras
Classifying Triangles
Superellipse
探索資源
Perpendicular to a line from a point on the line
Willaman Special right triangle
Corresponding 1
Art Flower
TWINS (22 May) Activity 3
探索主題
3D 向量（三維）
正弦
內切圓
三角函數
多項式函數