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S27G7 尺規作圖作平行線
Author:
学用数学
GeoGebra
New Resources
美國國旗 (Codex 版)
Earth with coastline
Nested spiral octagon
直角坐標平面上的旋轉變換
四邊形的特性
Discover Resources
Version 3
How to draw a decagon with ruler and compasses?
Problem1:(md+me+mf)/(ad+be+cf)=a
Compare areas by cutting shapes Q2
黃金三角形
Discover Topics
Symmetry
Cube
Tangent Function
Random Variables
Statistics