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平行四邊形之變奏I
Author:
周桂名
Topic:
Parallelogram
拉動一下C、D兩點，觀察一下！
GeoGebra
New Resources
三位數除以一位數（二）
兩位數除以一位數（一）
兩組對邊相等和有直角的四邊形
【案例】圆柱体内放置一个大球六个小球
拼砌四邊形
Discover Resources
myFirstGeoGebra
陳人瑜proof81
圆锥的侧面展开图3D动画的副本
十六菊
变化的三角形的旁心.许兴华数学
Discover Topics
Stochastic Process or Random Process
Combinatorics
Linear Programming or Linear Optimization
Statistics
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