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梯形的高
Author:
鍾文欽
Topic:
Trapezoid
GeoGebra
New Resources
兩組對邊相等和有直角的四邊形
Earth with coastline
sanjiaohanshu
近似值：有效數字
找出對稱軸
Discover Resources
反演 (Inversion)
面積換算公式
直線上的鄰角_2
重心
初中数学探究
Discover Topics
Cosine
Multiplication
Arithmetic
Inequalities
Solids or 3D Shapes