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perimeter
Author:
Yvonne Fung
,
GeoGebra Institute of Hong Kong
GeoGebra
New Resources
Earth with coastline
近似值：有效數字
三半圓間的相切圓(Codex╱2026.10.07)
Fibonacci Clock
美國國旗 (Codex 版)
Discover Resources
quadrilaterals 1
尤拉線
Centroid
圆锥侧面展开图
指數函數與對數函數圖形圖形(同底)
Discover Topics
General Quadrilateral
Hypergeometric Distribution
Intersection
Optimization Problems
Linear Programming or Linear Optimization