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迭帶
Author:
余銘芬
GeoGebra
New Resources
第八周作业
兩組對邊相等和有直角的四邊形
画直线等分三角形的面积
兩位數加法
四邊形的特性
Discover Resources
三角形内角和，演示
sierpinski carpet
畫等腰直角三角形
比較角的大小(直接比較)
Introduction to Rectangular Coordinates
Discover Topics
Prism
Algebra
Boxplot
Multiplication
Tangent Function