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三角形内角和练习题课件
Author:
迟中金
Topic:
Triangles
GeoGebra
New Resources
兩組對邊相等和有直角的四邊形
四邊形的特性
兩位數加法
找出對稱軸
兩位數除以一位數（一）
Discover Resources
商高定理之新月形
等差數列等差數列
函数图像研究
谢庆GGB绘本一
繪畫長方形
Discover Topics
Linear Equations
Ratios
Parametric Curves
Fractions
Difference and Slope