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30度直角三角形
Author:
郭勇
GeoGebra
New Resources
【案例】2018年全国1卷理科12题
第八周作业
GeoGebra笔记功能体验课件
錐體建築師
兩組對邊相等和有直角的四邊形
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Task 2 Equilateral Triangle
TEST
餘弦函數值的變化
圓例8
加減乘除运算 出题器【有数字键盘】
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Linear Regression
Circumcircle or Circumscribed Circle
Straight Lines
Diagrams
Difference and Slope