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三角形面積公式B2
Author:
maths324324
GeoGebra
New Resources
撒针估算面积实验
折扣
GeoGebra数学资源(4-8年级)
第八周作业2
椭圆内切圆链
Discover Resources
比和比值
pictures
拋物線的參數
圓周
對稱-釘板-Student
Discover Topics
Interest Calculation
Translation
Rotation
Step Functions
Perimeter