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第一組-垂心
Author:
mathguo
Topic:
Orthocenter
第一組-垂心
GeoGebra
New Resources
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
三位數除以一位數（一）
柱體建築師
【案例】圆柱体内放置一个大球六个小球
Discover Resources
兩針夾角
Drag A or X
第一个学习创建
GGB8
抛物线内接直角三角形斜边中点的轨迹
Discover Topics
Cosine
Isosceles Triangles
Vectors 3D (Three-Dimensional)
Stochastic Process or Random Process
Tree Diagrams