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Outline
基本圖形面積
Area of Triangle_1
Area of Parallelogram
Area of Triangle_2
Area of trapezoid
基本圖形面積
Author:
jack1012
基本圖形包含平行四邊形、三角形、梯形
Area of Triangle_1
Area of Parallelogram
Area of Triangle_2
Area of trapezoid
Next
Area of Triangle_1
New Resources
兩位數加法
四邉形 (四年級) 教師版
拼砌四邊形
兩組對邊相等和有直角的四邊形
兩位數除以一位數（二）
Discover Resources
simple arena
T3 Geobra
正四面體的旋轉對稱
角的介紹 | Introduction to Angles
双心四边形
Discover Topics
Integral Calculus
Statistics
Real Numbers
Geometric Transformations
Centroid or Barycenter
