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任意角1
Author:
军云
GeoGebra
New Resources
画直线等分三角形的面积
【案例】圆柱体内放置一个大球六个小球
四邊形的特性
兩組對邊相等和有直角的四邊形
兩組對邊相等的四邊形
Discover Resources
環環相扣
test
MY first GGBBook
工具：PlaneText, PlaneArrow
ptccs2new3
Discover Topics
Square
Trigonometry
Ellipse
Right Triangles
Rhombus