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兩弦的長度比較
Author:
luke huang
GeoGebra
New Resources
画直线等分三角形的面积
找出對稱軸
三位數除以一位數（二）
異分母分數減法
【案例】2018年全国1卷理科12题
Discover Resources
角内切圆
功課
三角函數sine跟cosine
平行四边形平移
面积
Discover Topics
Terms
Geometric Transformations
Histogram
Trapezoid
Tangent Function