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邊長與三角形（一）
Author:
GeoGebra Institute of Hong Kong
Topic:
Isosceles Triangles
,
Right Triangles
,
Triangles
GeoGebra
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異分母分數減法
兩組對邊相等和有直角的四邊形
球体的体积推导（优化版）
【案例】2018年全国1卷理科12题
球體建築師
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中線
生活中的平面圖形問題2
包絡線1
橢圓重心軌跡1
堆疊正立方體的副本
Discover Topics
Secant Line or Secant
Centroid or Barycenter
Definite Integral
Bar Chart or Bar Graph
Rhombus