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正弦公式(證明)
Author:
Y.W. Liu
Topic:
Sine
GeoGebra
New Resources
三位數除以一位數（一）
柱體建築師
兩組對邊相等和有直角的四邊形
四邉形 (四年級) 教師版
異分母分數減法
Discover Resources
a Geogebra file created by the first pre-service teacher
旋轉+伸縮正多邊形
學測試題
Triangle
六边形的向外迭代
Discover Topics
Optimization Problems
Root
Similar Triangles
Right Triangles
Logarithmic Functions