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Area of triangle with different base
Author:
Pong Hai Lin
Topic:
Area
,
Straight Lines
GeoGebra
New Resources
兩組對邊相等和有直角的四邊形
找出對稱軸
兩位數除以一位數（二）
兩位數加法
畫出對稱圖形
Discover Resources
減法
指数和幂增长
動畫初階練習1(平移)
三角形三边关系
劉徽的「割圓術」 的複本
Discover Topics
Quadrilaterals
Orthocenter
Scalene Triangles
Line Segment
Variance