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梯形
Author:
Chan Ting Hin
Topic:
Trapezoid
GeoGebra
New Resources
算柱 (兩位數)
Earth with coastline
近似值：有效數字
Nested spiral octagon
判斷球體
Discover Resources
Parallelogram 02
ghseh 二次函數描點法左右平移-1
Modular Surface：1 / (1 + z²)
几何体的副本
结果10以内加法
Discover Topics
Difference and Slope
Angles
Logic
Ratios
Combinatorics