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waaachen
Author:
陳兪宏
梯形+二次函數
GeoGebra
New Resources
球体的体积推导(优化版)
兩組對邊相等的四邊形
第八周作业
【案例】圆柱体内放置一个大球六个小球
三位數除以一位數(二)
Discover Resources
等量公理
P6 圓周02D
Epicycloid
圆锥侧面的展开
三角形相似的直观显示.许兴华数学
Discover Topics
Constructions
Polygons
Line Segment
Root
Upper and Lower Sum or Riemann Sum