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三角形兩邊內接相似平行四邊形
Author:
Gideon Huang
GeoGebra
New Resources
美國國旗 (Claude 版)
小数 的副本
Nested spiral octagon
拼砌四邊形
近似值：有效數字
Discover Resources
五邊形中點
相同圖形的拼砌（梯形）
S2 ch2.3 simultaneous equation
Transformation Golf 1-18 (Working)
镂空正方体案例对比
Discover Topics
Rhombus
Constructions
Congruence
Mode
Polygons