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正方形和長方形有甚麼特性？
Author:
Anthony OR 柯志明
GeoGebra
New Resources
兩位數加法
柱體建築師
兩組對邊相等和有直角的四邊形
兩組對邊相等的四邊形
【案例】2013年安徽高考15题
Discover Resources
三角形內切三圓
四下_四邊形(學生版)
數未學習社12/15
特課ggb第一堂課hw1
蜘蛛網
Discover Topics
Cone
Pie Chart or Circle Chart
Trigonometry
Line Segment
Optimization Problems