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张睿雪同学的提问
Author:
向学数学
Topic:
Triangles
GeoGebra
New Resources
算柱 (兩位數)
兩位數加法
【案例】圆柱体内放置一个大球六个小球
拼砌四邊形
找出對稱軸
Discover Resources
百分數：買賣問題（Java 版）
圓柱
生活中的平面圖形─多邊形的性質
test
指数函数的副本
Discover Topics
Subtraction
Interest Calculation
Equilateral Triangles
Fractions
Upper and Lower Sum or Riemann Sum