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曲边梯形的面积
Author:
Renxiaoli
通过三种曲边梯形面积计算方法的比较，能理解以直代曲和定积分的概念
New Resources
Constructing the Centroid
Squares Fractal Time-Waster
Playing with rotations
Implementation Domain coloring
Quadrilateral Fractal Time-Waster
Discover Resources
Special Triangle Relationships take 2
Shade out inequality 1: y≤2x
copying an angle
Chen_Marlin_P2_Similar_Triangles
Hole 4
Discover Topics
Standard Deviation
Tangent Function
Vectors 3D (Three-Dimensional)
Reflection
Addition