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Area of Parallelogram
Author:
jack1012
Topic:
Area
,
Parallelogram
平行四邊形典範圖形，及典範切割方式，說明平行四邊形面積等於長方形
GeoGebra
New Resources
判斷球體
算柱 (兩位數)
四邉形 (四年級) 教師版
兩組對邊相等和有直角的四邊形
Fibonacci Clock
Discover Resources
長方形與正方形的面積
將數列化為級數（文字）
binary and hexadecimal
变形的正方形
椭圆规
Discover Topics
Indefinite Integral
Tangent Function
Arithmetic Mean
Complex Numbers
Constructions