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30度直角三角形
Author:
郭勇
GeoGebra
New Resources
【案例】2013年安徽高考15题
【案例】2018年全国1卷理科12题
兩組對邊相等和有直角的四邊形
判斷球體
錐體建築師
Discover Resources
How to derive the value of Pi
Pyramid and Cone 2
Normal dist. (常態分布互動ggb)
螢橋國中 陳柏丞
三角形重心、垂心、內心、外心、尤拉線、九點圓圖解
Discover Topics
Straight Lines
Special Points
Parallelogram
Arithmetic Operations
Secant Line or Secant