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平行四邊形的高
Author:
鍾文欽
Topic:
Parallelogram
GeoGebra
New Resources
近似值：有效數字
兩組對邊相等和有直角的四邊形
算柱 (兩位數)
直角坐標平面上的旋轉變換
Fibonacci Clock
Discover Resources
色彩視覺藝術：內心與旁心
量度活動所用的時間 (時、分)
prism
不規則鑲嵌無背景 楊靜宜
sin(x) 的函數圖形的副本
Discover Topics
Standard Deviation
Differential Equation
Indefinite Integral
Matrices
Isosceles Triangles