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外凸的正方形
Author:
吕胜
GeoGebra
New Resources
折扣
撒针估算面积实验
第八周作业3
常见四边形是否是双心四边形
百分數及其應用
Discover Resources
正方形內部
P.4 對稱
外心
C60足球模型(弧线)
完全图及其变形
Discover Topics
Symmetry
Cylinder
Parallelogram
Planes
Linear Programming or Linear Optimization