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數學傳播39卷4期, 平面幾何公式思考
Author:
Yu-Tuan Lin
GeoGebra
New Resources
柱體建築師
兩組對邊相等的四邊形
【案例】2018年全国1卷理科12题
四邉形 (四年級) 教師版
兩組對邊相等和有直角的四邊形
Discover Resources
聯立方程式
Conic section-ellipse&hyperbola
ghseh 二次函數上下y值差
Chords of a Circle
验证勾股定理
Discover Topics
Indefinite Integral
Logic
Solids or 3D Shapes
Intersection
Secant Line or Secant