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扇形面積
Author:
李春培
扇形面積
GeoGebra
New Resources
【案例】圆柱体内放置一个大球六个小球
兩組對邊相等的四邊形
兩組對邊相等和有直角的四邊形
【案例】2018年全国1卷理科12题
GeoGebra笔记功能体验课件
Discover Resources
Quiz on Quadratic Formula 二次公式：測驗
旋轉一物件
normal dist.
Li Shan Lan Cone Logarithm
微信公众号“sx880A8”第253期印度尼西亚国旗（Indonesia flag）
Discover Topics
Set Theory
Calculus
Rectangle
Kite
Orthocenter