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平行四邊形和長方形的大小
Author:
杜寶茵
GeoGebra
New Resources
判斷球體
兩位數加法
直角坐標平面上的旋轉變換
球體建築師
兩組對邊相等和有直角的四邊形
Discover Resources
EnergyMath 2-3 複數乘法的幾何意義
Percentage（百分法）
與三個半圓相切的圓不規則區域著色
繡曲線03
拼出三角形的副本
Discover Topics
Sequences and Series
Plane Figures or Shapes
Similar Triangles
Functions
Fractal Geometry