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國旗1
Author:
林郁珺
國旗1
GeoGebra
New Resources
柱體建築師
畫出對稱圖形
四邊形的特性
兩組對邊相等的四邊形
兩位數除以一位數（二）
Discover Resources
concurrence of medians and bimedians of tetrahedron
面積分點公式
切割正十二面體
反射(鉛垂線、水平線及斜線) Reflection (vertical line, horizontal line and line)
连续半圆上的动点运动规律
Discover Topics
Right Triangles
Similar Triangles
Pythagoras or Pythagorean Theorem
Straight Lines
Prism