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平行四邊形有甚麼特性？
Author:
Anthony OR 柯志明
Topic:
Parallelogram
English version:
http://ggbtu.be/m79826
GeoGebra
New Resources
sanjiaohanshu
球體建築師
四邊形的特性
Earth with coastline
兩組對邊相等和有直角的四邊形
Discover Resources
分數乘法
徐峻彥's GGB book
Ex5D#9
弦的垂直線何時平分弦活動?
二階克拉瑪公式_找x
Discover Topics
Mathematics
Difference and Slope
Volume
Expected Value
Step Functions