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圓外切四邊形對邊和等長
Author:
謝易達
GeoGebra
New Resources
兩組對邊相等的四邊形
兩組對邊相等和有直角的四邊形
【案例】2018年全国1卷理科12题
【案例】2013年安徽高考15题
四邉形 (四年級) 教師版
Discover Resources
proof SAS
Features from Vertex form
Projection01
艾雪鑲嵌
正弦函数图像的动态绘制
Discover Topics
Functions
Natural Numbers
Diagrams
Bar Chart or Bar Graph
Optimization Problems