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定周长的正多边形面积变化规律
Author:
张英华
Topic:
Area
GeoGebra
New Resources
柱體建築師
兩位數加法
【案例】2018年全国1卷理科12题
三位數除以一位數（一）
兩組對邊相等的四邊形
Discover Resources
橢圓軌跡
兩針夾角
君子球
PTCCS2new2
鏡射的副本
Discover Topics
Geometry
Vectors 3D (Three-Dimensional)
Distributions
Addition
Piecewise Functions