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平行四邊形的面積
Author:
whtong
GeoGebra
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兩組對邊相等的四邊形
【案例】2013年安徽高考15题
四邊形的特性
柱體建築師
兩位數除以一位數(一)
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正三角形尺规作图
我的社團圖形
glt-h02-05-圓錐展開
圓錐切球
表内除法
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Numbers
Real Numbers
Linear Programming or Linear Optimization
Sphere
Random Experiments