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网板第60期第2题
Author:
单晨
GeoGebra
New Resources
兩位數加法
画直线等分三角形的面积
球体的体积推导（优化版）
兩組對邊相等的四邊形
判斷球體
Discover Resources
test file
图形
梯形
Rectangle_03
Trapezoid1
Discover Topics
Pythagoras or Pythagorean Theorem
Straight Lines
Probability
Cone
Hyperbola