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gjc093b19 梯形的面積
Author:
均一
GeoGebra
New Resources
常见四边形是否是双心四边形
龙形曲线-分形龙2
科赫雪花
异形操场
第八周作业
Discover Resources
Area of triangle using 0.5bs sinA
测试
全排列
旋轉方形
三角函數的描點與圖形
Discover Topics
Fractions
Rectangle
Hypothesis Testing
Variance
Indefinite Integral
