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銳角三角：sin, cos
Author:
羅驥韡 (Pegasus Roe)
GeoGebra
New Resources
兩組對邊相等和有直角的四邊形
兩位數除以一位數（一）
直角坐標平面上的旋轉變換
四邊形的特性
【案例】2013年安徽高考15题
Discover Resources
複數
可變大的圓桌
Sectors 扇形
周界平移
Net of a pyramid
Discover Topics
Equilateral Triangles
Logic
Linear Programming or Linear Optimization
Linear Equations
Binomial Distribution