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Tool3P4P之二
Author:
侯杰材
GeoGebra
New Resources
判斷球體
兩位數除以一位數(二)
球體建築師
拼砌四邊形
柱體建築師
Discover Resources
數學傳播39卷4期, 平面幾何公式思考
三角柱
RLC並聯諧振
正方体的展开图(彩色3d版 net cube)
小正多边形在大正多边形内的滚动(边长相等)
Discover Topics
Upper and Lower Sum or Riemann Sum
Combinatorics
Arithmetic Mean
Integers
Perimeter