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抛物线内接直角三角形斜边中点的轨迹
Author:
许兴华数学
Topic:
Conic Sections
GeoGebra
New Resources
画直线等分三角形的面积
判斷球體
兩位數除以一位數（一）
兩組對邊相等的四邊形
兩組對邊相等和有直角的四邊形
Discover Resources
concurrence of medians and bimedians of tetrahedron
會動的數據*3
台灣國旗(I love Taiwan)
任務2的副本
基础知识
Discover Topics
Trigonometry
Correlation
Complex Numbers
Quadrilaterals
Rotation