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平行四邊形
Author:
Ching-Hui Chou
Topic:
Parallelogram
GeoGebra
New Resources
四邊形的特性
四邉形 (四年級) 教師版
画直线等分三角形的面积
兩位數加法
兩位數除以一位數（二）
Discover Resources
五邊形中點
平移
半圓柱
Geometric Proof of Arithmetic-Geometric Mean Inequality
GGB多页面案例
Discover Topics
Coordinates
Parabola
Terms
Optimization Problems
Trigonometric Functions