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直線與平面關係
Author:
羅驥韡 (Pegasus Roe)
GeoGebra
New Resources
兩位數加法
兩組對邊相等和有直角的四邊形
異分母分數減法
【案例】2018年全国1卷理科12题
錐體建築師
Discover Resources
平行綫的斜率
立體 - 方位角及仰角
三角形的垂心
Congruent and Similarity
小学一年级上（人教版）
Discover Topics
Upper and Lower Sum or Riemann Sum
Scalene Triangles
Intersection
Orthocenter
Cuboid