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第14題
Author:
林鴻鈞
GeoGebra
New Resources
兩位數除以一位數（一）
近似值：有效數字
找出對稱軸
算柱 (兩位數)
拼砌四邊形
Discover Resources
特別角的三角函數值(2)
扇形面積
雙曲線20160521
勝者即正義，可愛即正義～(可用Ctrl+滑鼠滾輪放大界面)
碎形
Discover Topics
Hypothesis Testing
Ellipse
Parabola
Matrices
Quadratic Functions