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鏡面反射光線
Author:
紀老師
鏡面反射光線的動畫 入射角=反射角
GeoGebra
New Resources
第八周作业
兩位數除以一位數（一）
畫出對稱圖形
兩位數除以一位數（二）
【案例】2018年全国1卷理科12题
Discover Resources
Triangle Inequalities
會動的圖形
圆心角和圆周角
test01
滾出直線之2的副本
Discover Topics
Linear Equations
Scalene Triangles
Geometric Distribution
Conditional Probability
Addition