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梯形的高
Author:
鍾文欽
Topic:
Trapezoid
GeoGebra
New Resources
拼砌四邊形
兩組對邊相等和有直角的四邊形
小数 的副本
國旗 (作圖步驟直接餵給 Claude)
AI 訓練教室
Discover Resources
四下_面積（一）(學生版)
平面幾何
橢圓拋物面1
同心圓+等分割線
小正多边形在大正多边形内的滚动（边长不相等）
Discover Topics
Unit Circle
Hypothesis Testing
Equations
Perimeter
Inequalities