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勾股定理与余弦定理
Author:
洋葱教研
GeoGebra
New Resources
撒针估算面积实验
正方形雪花图案
活动三：应用性质
常见四边形是否是双心四边形
第八周作业3
Discover Resources
rectangle_tktcps
quiz 9.1 1(d)
四邊形的特性
性質三十三_四邊形四邊外接指定條件的平行四邊形
星形线-Astroid Curve-with-Envelope Command
Discover Topics
Prism
Subtraction
Cylinder
Rhombus
Power Functions