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合 24（附答案）
Author:
Anthony OR 柯志明
GeoGebra
New Resources
柱體建築師
算柱 (兩位數)
画直线等分三角形的面积
兩組對邊相等和有直角的四邊形
球體建築師
Discover Resources
正n邊形內角與外角
Quartiles and Box Plot (two data sets) 四分位數與框線圖（比較兩組數據）
Problem1:(md+me+mf)/(ad+be+cf)=a
極值問題
拋物線6--包絡線法
Discover Topics
Intersection
Tree Diagrams
Parabola
Geometry
Triangles