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梯形(面積)
Author:
WYC
Topic:
Area
,
Trapezium
GeoGebra
New Resources
兩組對邊相等的四邊形
三位數除以一位數（一）
拼砌四邊形
兩位數加法
画直线等分三角形的面积
Discover Resources
旋轉體 (Disk Method)
折射的現象
模擬3D---切割與展開
一般線性變換
數位學習社
Net of a pyramid
Discover Topics
Curve Sketching
Geometric Mean
Special Points
Line Segment
Angles