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mooc第四讲椭圆反射
Author:
单晨
GeoGebra
New Resources
兩位數除以一位數(二)
四邊形的特性
兩組對邊相等的四邊形
画直线等分三角形的面积
四邉形 (四年級) 教師版
Discover Resources
Simultaneous Linear Equations 聯立二元一次方程
畢氏定理動態證明(四塊直角三角形移動)
几何体
三角
對稱01
Discover Topics
Congruence
Isosceles Triangles
Vectors 2D (Two-Dimensional)
Geometric Mean
Trigonometric Functions